Several United States post offices are individually notable and have operated under the authority of the United States Post Office Department (1792–1971) or the United States Postal Service (since 1971). Notable U.S. post offices include individual buildings, whether still in service or not, which have architectural or community-related significance. Many of these are listed on the National Register of Historic Places (NRHP) and/or state and local historic registers.

• United States Post Office (Albertville, Alabama), listed on the National Register of Historic Places (NRHP)
• United States Post Office (Anniston, Alabama), NRHP-listed
• Old Athens, Alabama Main Post Office in Athens, NRHP-listed
• United States Post Office (Attalla, Alabama), NRHP-listed
• Auburn City Hall, in Auburn, formerly the "U.S. Post Office", NRHP-listed
• Robert S. Vance Federal Building and United States Courthouse, Birmingham, Alabama, formerly known as "U.S. Post Office"
• United States Post Office (Burbank, Alabama)
• United States Post Office (Demopolis, Alabama)
• Federal Building and United States Courthouse (Dothan, Alabama), also a post office
• United States Post Office (Fairhope, Alabama)
• United States Post Office (Gadsden, Alabama)
• Post Office Historic District, Greenville, Alabama
• United States Courthouse and Post Office (Huntsville, Alabama)
• Frank M. Johnson Jr. Federal Building and United States Courthouse, Montgomery, Alabama, listed on the NRHP as United States Post Office and Courthouse-Montgomery^[1]
• United States Post Office (Opelika, Alabama)
• United States Post Office (Saginaw, Alabama)
• United States Post Office Building (Selma, Alabama)

• Cordova Post Office and Courthouse, NRHP-listed^[1]
• Cooper Landing Post Office, NRHP-listed
• Sitka United States Post Office and Court House, NRHP-listed

• United States Post Office and Customs House-Douglas Main, Douglas, Arizona
• United States Post Office and Courthouse-Globe Main
• U.S. Post Office (Kingman, Arizona)
• U.S. Post Office and Immigration Station–Nogales Main
• United States Post Office, American Flag, Arizona, in Pinal County
• United States Post Office (Phoenix, Arizona)
• United States Post Office and Courthouse–Prescott Main, Prescott, Arizona
• James A. Walsh United States Courthouse, Tucson, Arizona, NRHP-listed as U.S. Post Office and Courthouse
• Old Brick Post Office, in Maricopa County
• United States Post Office–Yuma Main

• Berryville Post Office, in Berryville, in Carroll County, NRHP-listed
• Old Camden Post Office in Camden, in Ouachita County, NRHP-listed
• Crossett Post Office, in Crossett, in Ashley County, NRHP-listed
• Dardanelle Agriculture and Post Office, in Dardanelle, in Yell County, NRHP-listed
• DeWitt Post Office, in DeWitt, in Arkansas County, NRHP-listed
• Old Post Office (Fayetteville, Arkansas), NRHP-listed
• Doe Branch Post Office, in Ferndale, in Pulaski County, NRHP-listed
• Judge Isaac C. Parker Federal Building, in Fort Smith, NRHP-listed, also known as "U.S. Post Office and Courthouse", Fort Smith, Arkansas
• Old Post Office (Hot Springs, Arkansas), [in Garland County, NRHP-listed
• Lake Village Post Office, in Lake Village, in Chicot County, NRHP-listed
• Little Rock United States Post Office and Courthouse, in Little Rock, NRHP-listed
• Old Post Office Building and Customhouse (Little Rock, Arkansas), NRHP-listed
• Old Post Office (Mena, Arkansas), in Polk County, NRHP-listed
• Monticello Post Office, in Monticello, in Drew County, NRHP-listed
• Morrilton Post Office, in Morrilton, in Conway County, NRHP-listed
• North Little Rock Post Office, in North Little Rock, in Pulaski County, NRHP-listed
• Nashville Post Office, in Nashville, in Howard County, NRHP-listed
• Campbell Post Office-Kuykendall General Store, in Oxley, in Searcy County, NRHP-listed
• Paris Post Office, in Paris, in Logan County, NRHP-listed
• Piggott Post Office, in Piggott, in Clay County, NRHP-listed
• Pocahontas Post Office, in Pocahontas, in Randolph County, NRHP-listed
• Searcy Post Office, in Searcy, in White County, NRHP-listed
• United States Post Office-Stuttgart, in Stuttgart, in Arkansas County, NRHP-listed
• United States Post Office and Courthouse (Texarkana, Arkansas-Texas), NRHP-listed
• Van Buren Post Office, in Van Buren, in Crawford County, NRHP-listed
• Old Walnut Ridge Post Office, in Walnut Ridge, in Lawrence County, NRHP-listed
• Warren Post Office, in Warren, in Bradley County, NRHP-listed
• Wynne Post Office, in Wynne, in Cross County, NRHP-listed

• United States Post Office (Berkeley, California), NRHP-listed
• United States Post Office-Beverly Hills Main, in Beverly Hills, listed on the NRHP in Los Angeles County
• United States Post Office-Burbank Downtown Station, in Burbank, listed on the NRHP in Los Angeles County
• Chico Midtown Station, in Chico, listed on the NRHP as "US Post Office"
• United States Post Office-El Centro Main, in El Centro, listed on the NRHP in Imperial County
• United States Post Office and Courthouse (Eureka, California)
• United States Post Office-Glendale Main, in Glendale, listed on the NRHP in Los Angeles
• United States Post Office (Hollywood, California), NRHP-listed
• United States Post Office-Oroville Main, in Oroville, listed on the NRHP in Butte
• United States Post Office (Petaluma, California), in Petaluma, NRHP-listed in Sonoma County
• United States Post Office-Porterville Main, in Porterville, listed on the NRHP in Tulare County
• La Jolla Post Office, San Diego, listed on the NRHP in San Diego County
• United States Post Office-Long Beach Main, in Long Beach, NRHP-listed
• United States Court House (Los Angeles, 1940), listed on the NRHP as "US Court House and Post Office"
• United States Post Office – Los Angeles Terminal Annex, in Los Angeles, NRHP-listed
• United States Post Office-Marysville Main, in Marysville, listed on the NRHP in Yuba County
• United States Post Office (Merced, California), listed on the NRHP in Merced County
• United States Post Office (Modesto, California), listed on the NRHP in Stanislaus County
• United States Post Office-Napa Franklin Station, in Napa, listed on the NRHP in Napa County
• Main Post Office and Federal Building (Oakland, California), listed on the NRHP in Alameda County
• United States Post Office (Palo Alto, California), listed on the NRHP in Santa Clara County
• United States Post Office (Redlands, California), NRHP-listed
• Federal Post Office (Riverside, California), in Riverside, listed on the NRHP in Riverside County
• United States Post Office, Courthouse and Federal Building (Sacramento, California)
• Saint James Park Station, contributing property to the St. James Square Historic District in San Jose
• San Bernardino Downtown Station, NRHP-listed
• United States Post Office-Downtown Station (San Diego, California), in San Diego, listed on the NRHP in San Diego County
• Ferry Station Post Office Building, in San Francisco, listed on the NRHP in San Francisco
• James R. Browning United States Court of Appeals Building, San Francisco, listed on the NRHP as U.S. Post Office and Courthouse
• United States Post Office (San Pedro, California)
• United States Post Office Station-Spurgeon Station, in Santa Ana, listed on the NRHP in Orange County
• United States Post Office-Santa Barbara Main, in Santa Barbara, listed on the NRHP in Santa Barbara County
• United States Post Office-Santa Cruz Main, in Santa Cruz, listed on the NRHP in Santa Cruz County
• Old Post Office (Santa Rosa, California), listed on the NRHP in Sonoma County
• United States Post Office (Stockton, California), listed on the NRHP in San Joaquin County
• United States Post Office-Visalia Town Center Station, in Visalia, CA, listed on the NRHP in Tulare County
• United States Post Office-Willows Main, in Willows, listed on the NRHP in Glenn County

• United States Post Office-Boulder Main, in Boulder, CO, listed on the NRHP in Boulder County
• United States Post Office and Federal Building-Canon City Main, in Canon City, CO, listed on the NRHP in Fremont County
• United States Post Office and Federal Courthouse-Colorado Springs Main, in Colorado Springs, CO, listed on the NRHP in El Paso County
• United States Post Office and Federal Building-Delta Main, in Delta, CO, listed on the NRHP in Delta County
• Byron White United States Courthouse, listed on the NRHP in Downtown Denver as U.S. Post Office and Federal Building
• Florence Post Office, in Florence, Colorado, NRHP-listed in Fremont County
• Fort Collins Post Office, in Fort Collins, CO, listed on the NRHP in Larimer County
• United States Post Office-Fort Morgan Main, in Fort Morgan, CO, listed on the NRHP in Morgan County
• Wildhack's Grocery Store-Post Office, in Frisco, CO, listed on the NRHP in Summit County
• United States Post Office (Grand Junction, Colorado), listed on the NRHP in Mesa County
• United States Post Office (La Junta, Colorado), listed on the NRHP in Otero County
• Las Animas Post Office, in Las Animas, CO, listed on the NRHP in Bent County
• United States Post Office-Lamar Main, in Lamar, CO, listed on the NRHP in Prowers County
• United States Post Office-Manitou Springs Main, in Manitou Springs, CO, listed on the NRHP in El Paso County
• United States Post Office and Federal Building-Monte Vista Main, in Monte Vista, CO, listed on the NRHP in Rio Grande County
• United States Post Office-Montrose Main, in Montrose, CO, listed on the NRHP in Montrose County
• United States Post Office (Rifle, Colorado), in Rifle, Colorado, NRHP-listed in Garfield County
• United States Post Office, Federal Building, and Federal Courthouse-Sterling Main, in Sterling, CO, listed on the NRHP in Logan County
• United States Post Office-Trinidad Main, in Trinidad, CO, listed on the NRHP in Las Animas County

• United States Post Office–Ansonia Main, in Ansonia, Connecticut
• United States Post Office–Bridgeport Main, in Bridgeport, Connecticut
• United States Post Office (Greenwich, Connecticut)
• William R. Cotter Federal Building, Hartford, Connecticut, NRHP-listed as U.S. Post Office and Federal Building
• United States Post Office–Norwich Main, in Norwich, Connecticut
• United States Post Office–Manchester Main, in Manchester, Connecticut
• United States Post Office–Meriden Main, in Meriden, Connecticut
• Old Middletown Post Office, Middletown, Connecticut, NRHP-listed as U.S. Post Office
• United States Post Office–Milford Main, in Milford, Connecticut
• United States Post Office–Naugatuck Main, in Naugatuck, Connecticut
• United States Post Office-New London Main, in New London, Connecticut
• United States Post Office-South Norwalk Main, in Norwalk, Connecticut
• United States Post Office-Stamford Main, in Stamford, Connecticut
• United States Post Office (Westport, Connecticut), in Westport, Connecticut

• Kenton Post Office, in Kenton, NRHP-listed
• United States Post Office, Courthouse, and Customhouse (Wilmington, Delaware), NRHP-listed

• Cleveland Street Post Office, Clearwater, Florida, NRHP-listed
• United States Post Office (Daytona Beach, Florida), NRHP-listed
• El Jobean Post Office and General Store, El Jobean, Florida
• Evinston Community Store and Post Office, Evinston, Florida
• Old Fort Pierce Post Office, Fort Pierce, Florida
• U.S. Post Office, Gainesville, Florida, listed on the NRHP as U.S. Post Office
• Mandarin Store and Post Office, Jacksonville, Florida
• Old Post Office and Customshouse (Key West, Florida)
• Old Eau Gallie Post Office, in the Eau Gallie section of Melbourne
• David W. Dyer Federal Building and United States Courthouse, Miami, listed on the NRHP as U.S. Post Office and Courthouse
• Old United States Post Office and Courthouse (Miami, Florida)
• Ochopee Post Office, Ochopee, Florida – the smallest post office in the United States
• United States Post Office (Palm Beach, Florida)
• Palm City Post Office, Palm City, FL
• United States Customs House and Post Office (Pensacola, Florida)
• Old Perry Post Office, Perry, Florida
• Seaside Post Office, Seaside, FL
• United States Post Office (St. Petersburg, Florida)
• United States Post Office-Federal Building (Sarasota, Florida)
• Stuart Post Office, Stuart, FL
• United States Courthouse Building and Downtown Postal Station (Tampa, Florida)

• United States Post Office–Adel, Georgia
• United States Post Office and Courthouse (Albany, Georgia)
• Elbert P. Tuttle United States Court of Appeals Building, Atlanta, listed on the NRHP as U.S. Post Office and Courthouse
• United States Post Office, Federal Annex, in Atlanta, listed on the NRHP in Fulton County
• United States Post Office and Courthouse (Augusta, Georgia)
• United States Post Office-Baxley, Georgia, in Baxley, listed on the NRHP in Appling County
• Cassville Post Office, in Cassville, GA, listed on the NRHP in Bartow County
• U.S. Post Office (Carrollton, Georgia), listed on the NRHP in Carroll County
• United States Post Office and Courthouse (Columbus, Georgia)
• United States Post Office-Cordele, in Cordele, Georgia, listed on the NRHP in Crisp County
• United States Post Office-Decatur, Georgia, in Decatur, Georgia, listed on the NRHP in DeKalb County
• Woodall-Patton House and Post Office, in Ellaville, Georgia, listed on the NRHP in Schley County
• Jakin Post Office, formerly the "Bank of Jakin", in Jakin, Georgia, NRHP-listed
• Old U.S. Post Office and Federal Building (Macon, Georgia), NRHP-listed
• United States Post Office and Courthouse (Rome, Georgia)
• United States Post Office-Rossville Main, in Rossville, Georgia, listed on the NRHP in Walker County
• United States Post Office-Statesboro, in Statesboro, Georgia, listed on the NRHP in Bulloch County
• United States Post Office-Sylvester, in Sylvester, Georgia, listed on the NRHP in Worth County
• United States Post Office and Courthouse (Waycross, Georgia)

• Federal Building, United States Post Office and Courthouse (Hilo, Hawaii)
• Kamehameha V Post Office, Honolulu
• King David Kalakaua Building, Honolulu, Hawaii, formerly known as U.S. Post Office, Customhouse, and Courthouse
• United States Post Office–Lihue, on Kauai

• United States Post Office–Blackfoot Main, Blackfoot, Idaho
• Bonners Ferry Main Post Office, in Bonners Ferry, Idaho, NRHP-listed
• United States Post Office-Buhl Main, in Buhl, Idaho, listed on the NRHP in Twin Falls County
• United States Post Office-Caldwell Main, in Caldwell, Idaho, listed on the NRHP in Canyon County
• United States Post Office (Idaho Falls, Idaho), listed on the NRHP in Bonneville County
• United States Post Office-Kellogg Main, in Kellogg, Idaho, listed on the NRHP in Shoshone County
• Moscow Post Office and Courthouse, Moscow, Idaho
• United States Post Office-Nampa Main, in Nampa, Idaho, listed on the NRHP in Canyon County
• United States Post Office-Orofino Main, in Orofino, Idaho, listed on the NRHP in Clearwater County
• United States Post Office-Payette Main, in Payette, Idaho, listed on the NRHP in Payette County
• United States Post Office-Preston Main, in Preston, Idaho, listed on the NRHP in Franklin County
• United States Post Office-St. Anthony Main, in St. Anthony, Idaho, listed on the NRHP in Fremont County
• United States Post Office-Wallace Main, in Wallace, Idaho, listed on the NRHP in Shoshone County
• Weiser Post Office, in Weiser, Idaho, listed on the NRHP in Washington County
• Wickahoney Post Office and Stage Station, in Wickahoney, Idaho, listed on the NRHP in Owyhee County

• United States Post Office (Belvidere, Illinois), NRHP-listed
• United States Post Office (Champaign, Illinois), NRHP-listed
• Old Chicago Main Post Office, in Chicago
• United States Post Office (Joliet, Illinois), NRHP-listed
• United States Post Office (Mattoon, Illinois), NRHP-listed
• United States Post Office and Courthouse (Quincy, Illinois), NRHP-listed
• United States Post Office (Sycamore, Illinois), NRHP-listed

• United States Post Office (Brazil, Indiana)
• Evansville Post Office
• E. Ross Adair Federal Building and United States Courthouse in Fort Wayne
• Birch Bayh Federal Building and United States Courthouse in Indianapolis
• Michigan City Post Office
• Rickenbaugh House in Celina
• Terre Haute Post Office and Federal Building

Brooklyn Post Office

Paradise Lake Post Office

• Cedar Rapids Post Office and Public Building
• United States Post Office (Centerville, Iowa)
• United States Post Office (Creston, Iowa)
• United States Post Office and Court House (Davenport, Iowa)
• United States Post Office (Des Moines, Iowa)
• Former United States Post Office Building (Fairfield, Iowa)
• Old Post Office (Iowa City, Iowa)
• United States Post Office (Iowa Falls, Iowa)
• United States Post Office and Courthouse (Keokuk, Iowa)
• United States Post Office (Ottumwa, Iowa)
• Kegler Gonner Store and Post Office, in Springbrook
• Webster City Post Office

• Atchison Post Office, in Atchison, KS, listed on the NRHP in Kansas
• United States Post Office-Anthony, in Anthony, KS, listed on the NRHP in Kansas
• United States Post Office-Augusta, in Augusta, KS, listed on the NRHP in Kansas
• United States Post Office-Belleville, in Belleville, KS, listed on the NRHP in Kansas
• United States Post Office-Burlington, in Burlington, KS, listed on the NRHP in Kansas
• United States Post Office-Caldwell, in Caldwell, KS, listed on the NRHP in Kansas
• United States Post Office-Council Grove, in Council Grove, KS, listed on the NRHP in Kansas
• United States Post Office-Eureka, in Eureka, KS, listed on the NRHP in Kansas
• United States Post Office-Fredonia, Kansas, in Fredonia, KS, listed on the NRHP in Kansas
• United States Post Office-Goodland, in Goodland, KS, listed on the NRHP in Kansas
• United States Post Office-Halstead, in Halstead, KS, listed on the NRHP in Kansas
• United States Post Office-Herington, in Herington, KS, listed on the NRHP in Kansas
• United States Post Office-Horton, in Horton, KS, listed on the NRHP in Kansas
• United States Post Office-Hutchinson, in Hutchinson, KS, listed on the NRHP in Kansas
• Federal Building-United States Post Office (Independence, Kansas), in Independence, KS, listed on the NRHP in Kansas
• United States Post Office-Kingman, in Kingman, KS, listed on the NRHP in Kansas
• United States Post Office-Lawrence, in Lawrence, KS, listed on the NRHP in Kansas
• United States Post Office-Hoisington, in Hoisington, KS, listed on the NRHP in Kansas
• United States Post Office-Lindsborg
• United States Post Office-Neodesha, in Neodesha, KS, listed on the NRHP in Kansas
• United States Post Office-Oswego, in Oswego, KS, listed on the NRHP in Kansas
• United States Post Office-Russell, in Russell, KS, listed on the NRHP in Kansas
• United States Post Office-Sabetha, in Sabetha, KS, listed on the NRHP in Kansas
• United States Post Office and Federal Building-Salina, in Salina, KS, listed on the NRHP in Kansas
• United States Post Office-Seneca, in Seneca, KS, listed on the NRHP in Kansas
• United States Post Office and Federal Building (Wichita, Kansas)

• United States Post Office-Ashland, in Ashland, KY, listed on the NRHP in Kentucky
• Callis General Store and Post Office, in Bedford, KY, listed on the NRHP in Kentucky
• Belleview Post Office, in Belleview, KY, listed on the NRHP in Kentucky
• United States Post Office-Bronston, in Bronston, KY, listed on the NRHP in Kentucky
• Bryantsville Post Office and Store, in Bryantsville, KY, listed on the NRHP in Kentucky
• Dabney Post Office, in Dabney, KY, listed on the NRHP in Kentucky
• United States Post Office-Elizabethtown, in Elizabethtown, KY, listed on the NRHP in Kentucky
• Old United States Courthouse and Post Office (Frankfort, Kentucky)
• United States Post Office/Board of Education Building, in Glasgow, KY, listed on the NRHP in Kentucky
• United States Post Office-Harrodsburg, in Harrodsburg, KY, listed on the NRHP in Kentucky
• Jackson Post Office, in Jackson, KY, listed on the NRHP in Kentucky
• United States Post Office and Court House (Lexington, Kentucky)
• Gene Snyder United States Courthouse, listed on the NRHP in Downtown Louisville as United States Post Office, Court House and Custom House
• Old United States Customshouse and Post Office (Louisville, Kentucky)
• United States Post Office-Madisonville, in Madisonville, KY, listed on the NRHP in Kentucky
• United States Post Office (Mayfield, Kentucky), listed on the NRHP in Kentucky
• United States Post Office-Murray, in Murray, KY, listed on the NRHP in Kentucky
• Federal Building and US Post Office-Owensboro, in Owensboro, KY, listed on the NRHP in Kentucky
• United States Post Office-Prestonsburg, in Prestonsburg, KY, listed on the NRHP in Kentucky
• Willisburg Central Bank and Post Office, in Willisburg, KY, listed on the NRHP in Kentucky

• United States Post Office and Courthouse–Alexandria
• United States Post Office and Courthouse–Baton Rouge
• Old Post Office (Baton Rouge, Louisiana)
• Adam Ponthieu Store-Big Bend Post Office, in Big Bend, Louisiana, listed on the National Register of Historic Places in Avoyelles Parish
• Central Bank and Trust Co., Hessmer, Louisiana, listed on the National Register of Historic Places in Avoyelles Parish
• United States Post Office (Bogalusa, Louisiana)
• Jennings Post Office, in Jennings, Louisiana
• United States Post Office (Mansfield, Louisiana), listed on the NRHP in Louisiana
• United States Post Office (Morgan City, Louisiana), listed on the NRHP in Louisiana
• Star Hill Post Office and Store, St. Francisville, Louisiana, listed on the NRHP in Louisiana
• United States Post Office (St. Martinville, Louisiana), listed on the NRHP in Louisiana
• United States Post Office and Courthouse (Shreveport, Louisiana)
• Old Post Office Museum, Winnsboro, Louisiana

• Old Post Office (Augusta, Maine), listed on the NRHP in Maine
• United States Post Office-Bar Harbor Main, in Bar Harbor, listed on the NRHP in Maine
• United States Customhouse and Post Office (Bath, Maine)
• U.S. Post Office (Biddeford, Maine), listed on the NRHP in Maine
• United States Post Office-Camden Main, in Camden, listed on the NRHP in Maine
• East Blue Hill Post Office, in East Blue Hill, listed on the NRHP in Maine
• United States Post Office-Lewiston Main, Lewiston
• Old Post Office (Liberty, Maine)
• Machias Post Office and Customhouse, Machias
• United States Post Office-Old Town Main, in Old Town, listed on the NRHP in Maine
• United States Post Office-Orono Main, in Orono, listed on the NRHP in Maine
• Post Office, Portland, Maine, designed by Alfred B. Mullett, demolished in 1965
• United States Post Office-Presque Isle Main, in Presque Isle, listed on the NRHP in Maine
• United States Post Office-Sanford Main, in Sanford, listed on the NRHP in Maine
• United States Customhouse and Post Office (Waldoboro, Maine), listed on the NRHP in Maine
• Waterville Post Office, in Waterville, listed on the NRHP in Maine
• United States Customhouse (Old Customhouse) and Post Office, Wiscasset
• Early Post Office, in Wells, listed on the NRHP in Maine

• United States Post Office and Courthouse (Baltimore, Maryland)
• United States Post Office (College Park, Maryland), a contributing property in the Calvert Hills Historic District
• United States Post Office–Hyattsville Main, Hyattsville

• United States Post Office (Arlington, Massachusetts), NRHP-listed
• Old Attleboro Post Office, Attleboro, NRHP-listed
• Santuit Post Office, Barnstable, NRHP-listed
• United States Post Office (Beverly, Massachusetts)
• United States Post Office, Courthouse, and Federal Building, listed on the NRHP in Boston
• Old Post Office Building (Brockton, Massachusetts)
• U.S. Post Office-Central Square, Cambridge
• Old Post Office Building (Deerfield, Massachusetts), NRHP-listed
• United States Post Office-Easthampton Main
• United States Post Office-Great Barrington Main
• United States Post Office-Greenfield Main
• United States Post Office-Holyoke Main
• United States Post Office-Lexington Main
• Lowell Post Office, in Lowell
• Thomas P. Costin Jr. Post Office Building, in Lynn, NRHP-listed
• Old Post Office Building (Lynn, Massachusetts), NRHP-listed
• United States Post Office-Medford Main
• United States Post Office-Middleborough Main
• United States Post Office-Millbury Main
• United States Post Office-Milton Main
• United States Post Office-Newburyport Main
• United States Post Office-Whitinsville Main
• United States Post Office-Palmer Main
• Plymouth Post Office Building, Plymouth
• United States Post Office (Provincetown, Massachusetts)
• United States Post Office-Quincy Main
• United States Post Office-Salem Main
• United States Post Office-Somerville Main
• United States Post Office Garage, South Boston
• United States Post Office-South Hadley Main
• United States Post Office-Taunton Main
• United States Post Office-Wakefield Main
• United States Post Office-Waltham Main
• United States Post Office-Weymouth Landing, Weymouth
• United States Post Office-Williamstown Main
• United States Post Office-Winchester Main
• United States Post Office-Woburn Center Station, Woburn
• United States Post Office (Worcester, Massachusetts), listed on the NRHP

• Main Street Post Office, in Ann Arbor, MI, NRHP-listed
• Battle Creek Post Office, in Battle Creek, MI, NRHP-listed
• Climax Post Office Building, in Climax, MI, NRHP-listed
• Stone Post Office, Jackson, MI, NRHP-listed
• U.S. Post Office (Grand Rapids, Michigan), NRHP-listed in Kent County
• Lincoln Park Post Office, in Lincoln Park, MI, NRHP-listed
• Old U.S. Post Office (Niles, Michigan), NRHP-listed
• Castle Museum (Saginaw, Michigan), also known as Saginaw Post Office or Castle Station, NRHP-listed
• United States Post Office (Flint, Michigan)

• U.S. Post Office-Alexandria, in Alexandria, Minnesota, listed on the NRHP in Minnesota
• Anoka Post Office, in Anoka, Minnesota, listed on the NRHP in Minnesota
• United States Post Office (Fairmont, Minnesota), listed on the NRHP in Martin County, Minnesota
• Federal Courthouse and Post Office (Mankato, Minnesota), listed on the NRHP in Minnesota
• United States Post Office (Minneapolis, Minnesota), listed on the NRHP in Hennepin County, Minnesota
• Federal Courthouse and Post Office (Moorhead, Minnesota), listed on the NRHP in Minnesota
• New Ulm Post Office, in New Ulm, Minnesota, listed on the NRHP in Minnesota
• Landmark Center (St. Paul), Saint Paul, Minnesota, originally served as the United States Post Office, Court House, and Custom House
• United States Post Office and Custom House (St. Paul, Minnesota), listed on the NRHP in Ramsey County, Minnesota
• Lost Lake Post Office, in Plymouth, Minnesota

• U.S. Courthouse and Post Office (Aberdeen, Mississippi), NRHP-listed
• United States Post Office-Amory, in Amory, Mississippi, listed on the NRHP in Mississippi
• U.S. Post Office, Courthouse, and Customhouse (Biloxi, Mississippi), NRHP-listed, in Harrison County
• United States Post Office (Brookhaven, Mississippi), listed on the NRHP in Mississippi
• U.S. Post Office (Carthage, Mississippi), listed on the NRHP in Mississippi
• U.S. Post Office (Cleveland, Mississippi), listed on the NRHP in Mississippi
• U.S. Post Office (Columbia, Mississippi), listed on the NRHP in Mississippi
• Old U.S. Post Office (Corinth, Mississippi), listed on the NRHP in Mississippi
• United States Post Office-Crystal Springs, in Crystal Springs, Mississippi, listed on the NRHP in Mississippi
• United States Post Office-Forest, in Forest, Mississippi, listed on the NRHP in Mississippi
• Old U.S. Post Office (Greenwood, Mississippi), a Mississippi Landmark
• Old U.S. Post Office (Grenada, Mississippi), listed on the NRHP in Mississippi and as a Mississippi Landmark
• U.S. Post Office and Customhouse (Gulfport, Mississippi), Gulfport, Mississippi, NRHP-listed
• U.S. Post Office (Hattiesburg, Mississippi), listed on the NRHP in Forrest County, Mississippi
• United States Post Office-Hazlehurst, in Hazlehurst, Mississippi, listed on the NRHP in Mississippi
• Old U.S. Post Office (Kosciusko, Mississippi), a Mississippi Landmark
• U.S. Post Office (Leland, Mississippi), listed on the NRHP in Mississippi
• U.S. Post Office (Lumberton, Mississippi), listed on the NRHP in Mississippi
• United States Post Office-Magnolia, in Magnolia, Mississippi, listed on the NRHP in Mississippi
• Old U.S. Post Office (McComb, Mississippi), a Mississippi Landmark
• United States Post Office and Courthouse (Meridian, Mississippi), NRHP-listed
• Old U.S. Post Office (Natchez, Mississippi), a Mississippi Landmark
• Old US Post Office (Philadelphia, Mississippi), listed on the NRHP in Mississippi
• United States Post Office, Old--Ripley, in Ripley, Mississippi, listed on the NRHP in Mississippi
• United States Post Office-Water Valley, in Water Valley, Mississippi, listed on the NRHP in Mississippi
• Old U.S. Post Office (West Point, Mississippi), a Mississippi Landmark
• U.S. Post Office (Winona, Mississippi), listed on the NRHP in Mississippi

• Bank of Avilla, aka US Post Office, Avilla, Missouri, NRHP-listed
• U.S. Post Office (Carrollton, Missouri), NRHP-listed
• United States Post Office-Kansas City, in Kansas City, MO, NRHP-listed in Jackson County: Downtown Kansas City
• U.S. Courthouse and Post Office-Kansas City, MO, in Kansas City, MO, NRHP-listed and a U.S. National Historic Landmark
• Union Station Post Office Annex, in St. Louis, MO, NRHP-listed in downtown St. Louis
• United States Customhouse and Post Office (St. Louis, Missouri), a National Historic Landmark building in St. Louis, Missouri
• U.S. Customhouse and Post Office (Springfield, Missouri), NRHP-listed
• Lee's Summit Post Office, Lee's Summit, Missouri, NRHP-listed in Jackson County

• U.S. Post Office-Anaconda Main, in Anaconda, Montana, listed on the NRHP in Montana
• U.S. Post Office and Courthouse–Billings
• U.S. Post Office (Butte, Montana)
• U.S. Post Office-Dillon Main, in Dillon, Montana, listed on the NRHP in Montana
• U.S. Post Office and Courthouse–Glasgow Main, Glasgow, Montana
• U.S. Post Office (Glendive, Montana), NRHP-listed in Dawson County
• U.S. Post Office and Courthouse–Great Falls
• U.S. Post Office and Courthouse–Havre Main, in Havre, Montana
• U.S. Post Office and Federal Building-Lewistown, in Lewistown, Montana, listed on the NRHP in Montana
• U.S. Post Office-Livingston Main, in Livingston, Montana, listed on the NRHP in Montana
• Miles City Main Post Office, in Miles City, Montana, NRHP-listed
• U.S. Post Office (Missoula, Montana)

• United States Post Office (Albion, Nebraska), in Albion, Nebraska, NRHP-listed in Boone County
• United States Post Office-Auburn, in Auburn, Nebraska, NRHP-listed in Nemaha County
• United States Post Office (Crawford, Nebraska), in Crawford, Nebraska, NRHP-listed in Dawes County
• Old Fremont Post Office, in Fremont, Nebraska, NRHP-listed in Dodge County
• United States Post Office-Geneva, Nebraska, in Geneva, Nebraska, NRHP-listed in Fillmore County
• Grand Island United States Post Office and Courthouse
• United States Post Office-Hebron, in Hebron, Nebraska, NRHP-listed
• U.S. Post Office (Kearney, Nebraska), now the Museum of Nebraska Art, NRHP-listed in Buffalo County
• Minden United States Post Office, in Minden, Nebraska, NRHP-listed in Buffalo County
• U.S. Post Office (Nebraska City, Nebraska), NRHP-listed in Otoe County
• U.S. Post Office and Courthouse (Norfolk, Nebraska)
• United States Post Office (O'Neill, Nebraska), NRHP-listed in Holt County
• United States Post Office-Ogallala, in Ogallala, Nebraska, NRHP-listed in Keith County
• Old Post Office (Omaha, Nebraska), demolished building
• United States Post Office-Pawnee City, in Pawnee City, Nebraska, NRHP-listed in Pawnee City
• Red Cloud United States Post Office, in Red Cloud, Nebraska, NRHP-listed
• United States Post Office-Schuyler, in Schuyler, Nebraska, NRHP-listed in Colfax County
• United States Post Office-Scottsbluff, in Scottsbluff, Nebraska, NRHP-listed
• U.S. Post Office-Valentine, in Valentine, Nebraska, NRHP-listed in Cherry County
• Wayne United States Post Office, in Wayne, Nebraska, NRHP-listed

• Carson City Post Office, in Carson City, NV, NRHP-listed^[1]
• Elko Main Post Office, in Elko, NV, NRHP-listed
• U.S. Post Office (Ely, Nevada), NRHP-listed
• Federal Building and Post Office (Fallon, Nevada), NRHP-listed
• Las Vegas Post Office and Courthouse, NRHP-listed
• U.S. Post Office-Lovelock Main, in Lovelock, NV, NRHP-listed
• Reno Main Post Office, in Reno, NV, NRHP-listed
• Tonopah Main Post Office, in Tonopah, NV, NRHP-listed
• Winnemucca Main Post Office, in Winnemucca, NV, NRHP-listed
• U.S. Post Office (Yerington, Nevada), NRHP-listed

• Old Post Office (Concord, New Hampshire), NRHP-listed
• United States Post Office-Dover Main, in Dover, NRHP-listed
• Oldest Continuously Operating U.S. Post Office Building, in Hinsdale^[2]
• United States Post Office-Laconia Main, in Laconia, NRHP-listed
• United States Post Office–Lancaster Main, in Lancaster, NRHP-listed
• United States Post Office and Courthouse–Littleton Main, in Littleton, NRHP-listed
• Old Post Office Block, in Manchester, NRHP-listed
• United States Post Office-Peterborough Main, in Peterborough, NRHP-listed
• United States Post Office-Somersworth Main, in Somersworth, NRHP-listed

• Belcoville Post Office, in Belcoville, New Jersey, listed on the NRHP in Atlantic County
• United States Post Office and Courthouse (Camden, New Jersey), listed on the NRHP in Camden County
• Main Post Office, in New Brunswick, New Jersey, listed on the NRHP in Middlesex County
• Post Office Building, Upper Montclair, in Montclair, New Jersey, listed on the NRHP in Essex County
• United States Post Office (Metuchen, New Jersey), listed on the NRHP in Middlesex County
• U.S. Post Office and Courthouse (Trenton, New Jersey), listed on the NRHP in Mercer County

• United States Post Office-Alamogordo, in Alamogordo, NM, listed on the NRHP in New Mexico
• Old Post Office (Albuquerque, New Mexico), listed on the NRHP in Albuquerque
• Old Clovis Post Office in Clovis, NM, listed on the NRHP in New Mexico
• United States Post Office-Deming Main, in Deming, NM, listed on the NRHP in New Mexico
• United States Post Office (Gallup, New Mexico), listed on the NRHP in New Mexico
• Old Las Vegas Post Office in Las Vegas, NM, listed on the NRHP in New Mexico
• United States Post Office-Portales Main, in Portales, NM, listed on the NRHP in New Mexico
• United States Post Office-Truth or Consequences Main, in Truth or Consequences, NM, listed on the NRHP in New Mexico

• United States Post Office (Akron, New York)
• Old Post Office (Albany, New York)
• United States Post Office (Albion, New York)
• United States Post Office (Amsterdam, New York)
• United States Post Office (Angola, New York)
• United States Post Office (Attica, New York)
• Old Post Office and Courthouse (Auburn, New York)
• United States Post Office (Batavia, New York), contributing structure in the Genesee County Courthouse Historic District
• United States Post Office (Ballston Spa, New York)
• United States Post Office (Bath, New York)
• United States Post Office (Bay Shore, New York)
• United States Post Office (Beacon, New York)
• United States Post Office (Boonville, New York)
• United States Post Office (Brewerton, New York)
• United States Post Office (Bronxville, New York)
• United States Post Office (Buffalo, New York), now known as Old Post Office (Buffalo, New York)
• United States Post Office (Canajoharie, New York)
• United States Post Office (Canandaigua, New York)
• United States Post Office (Canastota, New York)
• United States Post Office (Canton, New York)
• United States Post Office (Carthage, New York)
• United States Post Office (Catskill, New York)
• United States Post Office (Cicero, New York)
• United States Post Office (Cleveland, New York)
• United States Post Office (Clyde, New York)
• United States Post Office (Constantia, New York)
• United States Post Office (Cooperstown, New York)
• United States Post Office (Corning, New York)
• United States Post Office (Cortland, New York)
• United States Post Office (Dansville, New York)
• United States Post Office (Delhi, New York)
• United States Post Office (Delmar, New York)
• United States Post Office (Depew, New York)
• United States Post Office (Dobbs Ferry, New York)
• United States Post Office (Dolgeville, New York)
• United States Post Office (Dunkirk, New York)
• United States Post Office (East Rochester, New York)
• United States Post Office (Ellenville, New York)
• United States Post Office (Elizabethtown, New York)
• Old Platte Clove Post Office, in Elka Park, NY
• United States Post Office (Endicott, New York)
• United States Post Office (Fort Plain, New York)
• United States Post Office (Frankfort, New York)
• United States Post Office (Fredonia, New York)
• United States Post Office (Freeport, New York)
• United States Post Office (Fulton, New York)
• United States Post Office (Gabriels, New York)
• United States Post Office (Garden City, New York)
• United States Post Office (Geneva, New York)
• Old Glen Cove Post Office, a former post office in Glen Cove, New York on the NRHP in the Town of Oyster Bay, New York
• United States Post Office (Glen Cove, New York)
• United States Post Office (Goshen, New York)
• United States Post Office (Gouverneur, New York)
• United States Post Office (Granville, New York)
• United States Post Office (Great Neck, New York)
• United States Post Office (Greece, New York)
• United States Village Post Office (Greece, New York)
• United States Post Office (Hamilton, New York)
• United States Post Office (Harrison, New York)
• United States Post Office (Haverstraw, New York)
• United States Post Office (Hempstead, New York)
• United States Post Office (Herkimer, New York)
• United States Post Office (Homer, New York)
• United States Post Office (Honeoye Falls, New York)
• United States Post Office (Hoosick Falls, New York)
• United States Post Office (Hornell, New York)
• United States Post Office (Hudson, New York)
• United States Post Office (Hudson Falls, New York)
• United States Post Office (Hyde Park, New York)
• United States Post Office (Ilion, New York)
• United States Post Office (Ithaca, New York)
• United States Post Office (Johnson City, New York)
• United States Post Office (Johnstown, New York)
• United States Post Office (Kirkville, New York)
• United States Post Office (Lake George, New York)
• United States Post Office (Lake Placid, New York)
• United States Post Office (Lancaster, New York)
• United States Post Office (Larchmont, New York)
• United States Post Office (Le Roy, New York)
• United States Post Office (Little Falls, New York)
• United States Post Office (Little Valley, New York)
• United States Post Office (Lockport, New York)
• United States Post Office (Long Beach, New York)
• United States Post Office (Lyons, New York)
• United States Post Office (Malone, New York)
• United States Post Office (Medina, New York)
• United States Post Office (Middleburgh, New York)
• United States Post Office (Middleport, New York)
• United States Post Office (Mineola, New York)
• United States Post Office (Mount Vernon, New York)
• United States Post Office (New Rochelle, New York)
• New York City
  • James A. Farley Post Office Building, main New York, NY (Manhattan) post office
  • 90 Church Street, in lower Manhattan
  • United States Post Office (Canal Street Station), New York, NY
  • United States Post Office (Cooper Station), New York, NY
  • United States Post Office (Inwood Station), New York, NY
  • United States Post Office (Knickerbocker Station), New York, NY
  • United States Post Office (Lenox Hill Station), New York, NY
  • United States Post Office (Madison Square Station), New York, NY
  • United States Post Office (Old Chelsea Station), New York, NY
  • Federal Building and Post Office (Brooklyn), main Brooklyn, NY post office
  • United States Post Office (Bensonhurst, Brooklyn), Parkville Station
  • United States Post Office (Flatbush, Brooklyn)
  • United States Post Office (Kensington, Brooklyn)
  • United States Post Office (Williamsburg, Brooklyn), Metropolitan Station
  • United States Post Office–Bronx Central Annex
  • United States Post Office (Morrisania, Bronx)
  • United States Post Office (Far Rockaway, Queens)
  • United States Post Office (Flushing, Queens)
  • United States Post Office (Forest Hills, Queens)
  • United States Post Office (Jackson Heights, Queens)
  • United States Post Office (Jamaica, Queens)
  • United States Post Office (Long Island City, Queens)
• United States Post Office (Newark, New York)
• United States Post Office (Newburgh, New York)
• United States Post Office (Newtonville, New York)
• United States Post Office (Niagara Falls, New York)
• United States Post Office (North Tonawanda, New York)
• United States Post Office (Northport, New York)
• United States Post Office (Norwich, New York)
• United States Post Office (Nyack, New York)
• United States Post Office (Ogdensburg, New York)
• United States Post Office (Olean, New York)
• United States Post Office (Oneida, New York)
• Old Post Office (Oneonta, New York)
• United States Post Office (Owego, New York)
• United States Post Office (Oxford, New York)
• United States Post Office (Oyster Bay, New York)
• United States Post Office (Painted Post, New York)
• United States Post Office (Patchogue, New York)
• United States Post Office (Paul Smiths, New York)
• United States Post Office (Pearl River, New York)
• United States Post Office (Peekskill, New York)
• United States Post Office (Penn Yan, New York)
• United States Post Office (Port Chester, New York)
• United States Post Office (Port Jervis, New York)
• United States Post Office (Potsdam, New York)
• United States Post Office (Poughkeepsie, New York)
• United States Post Office (Rainbow Lake, New York)
• United States Post Office (Rhinebeck, New York)
• O'Brien General Store and Post Office, Rhinecliff, NY
• United States Post Office (Richfield Springs, New York)
• United States Post Office (Riverhead, New York)
• United States Post Office (Rockville Centre, New York)
• United States Post Office (Rye, New York)
• United States Post Office (Saranac Lake, New York)
• United States Post Office (Saratoga Springs, New York)
• United States Post Office (Scarsdale, New York)
• United States Post Office (Schenectady, New York)
• United States Post Office (Scotia, New York)
• United States Post Office (Seneca Falls, New York)
• United States Post Office (Spring Valley, New York)
• United States Post Office (Springville, New York)
• United States Post Office (St. Johnsville, New York)
• United States Post Office (Suffern, New York)
• United States Post Office (Ticonderoga, New York)
• United States Post Office (Tupper Lake, New York)
• United States Post Office (Tonawanda, New York)
• United States Post Office (Troy, New York)
• United States Post Office (Walton, New York)
• Wappingers Falls Village Hall, formerly "US Post Office of Wappingers Falls"
• United States Post Office (Warsaw, New York)
• United States Post Office (Waterloo, New York)
• United States Post Office (Watkins Glen, New York)
• United States Post Office (Waverly, New York)
• United States Post Office (Wellsville, New York)
• United States Post Office (Westhampton Beach, New York)
• United States Post Office (Whitehall, New York)
• United States Post Office (Yonkers, New York)

• Former US Post Office (Belmont, North Carolina), listed on the NRHP in North Carolina
• United States Post Office (Boone, North Carolina), listed on the NRHP in North Carolina
• United States Post Office (Burlington, North Carolina), listed on the NRHP in Burlington
• United States Post Office (Fayetteville, North Carolina), listed on the NRHP in North Carolina
• United States Post Office (Greenville, North Carolina), listed on the NRHP in North Carolina
• United States Post Office (Lumberton, North Carolina), listed on the NRHP in North Carolina
• Cana Store and Post Office, in Mocksville, North Carolina, listed on the NRHP in North Carolina
• United States Post Office (Monroe, North Carolina), listed on the NRHP in North Carolina
• Former US Post Office (Mount Olive, North Carolina), listed on the NRHP in North Carolina
• United States Post Office and Courthouse (New Bern, North Carolina, 1935), a contributing property
• U. S. Post Office and Federal Building (Rockingham, North Carolina), in Rockingham, NC, listed on the NRHP in North Carolina
• Salvo Post Office, Salvo, North Carolina, listed on the NRHP in North Carolina
• Former US Post Office (Smithfield, North Carolina), listed on the NRHP in North Carolina
• U.S. Post Office and County Courthouse, in Statesville, North Carolina, listed on the NRHP in North Carolina
• United States Post Office (Wadesboro, North Carolina), listed on the NRHP in North Carolina
• Former US Post Office Building (Waynesville, North Carolina), listed on the NRHP in North Carolina

• United States Post Office and Courthouse (Bismarck, North Dakota), NRHP-listed
• Carrington Post Office, NRHP-listed
• Post Office (Christine, North Dakota), NRHP-listed
• United States Post Office and Courthouse (Devils Lake, North Dakota), NRHP-listed
• Dickinson Post Office, NRHP-listed
• Federal Building and U.S. Post Office (Fargo, North Dakota), NRHP-listed
• Grafton Post Office (Grafton, North Dakota), NRHP-listed
• Ronald N. Davies Federal Building and U.S. Courthouse, listed on the NRHP in Grand Forks as "U.S. Post Office and Courthouse"
• Grassy Butte Post Office, NRHP-listed
• United States Post Office-Hettinger, NRHP-listed
• United States Post Office-Langdon, NRHP-listed
• Lisbon Post Office, NRHP-listed
• Minot Post Office, NRHP-listed
• Oakes Post Office, NRHP-listed
• United States Customs House and Post Office – Pembina, NRHP-listed
• New Rockford Post Office, NRHP-listed
• Rugby Post Office, NRHP-listed
• Valley City Post Office, NRHP-listed
• Wahpeton Post Office, NRHP-listed
• Old U.S. Post Office (Williston, North Dakota), NRHP-listed

• Akron Post Office and Federal Building, listed on the NRHP in Akron
• Old Akron Post Office, listed on the NRHP in Akron, Ohio
• U.S. Post Office (Bowling Green, Ohio), listed on the NRHP in Ohio
• Chardon Post Office Building, in Chardon, OH, listed on the NRHP in Ohio
• U.S. Post Office (Chesterville, Ohio), listed on the NRHP in Ohio
• Old College Hill Post Office, listed on the NRHP in Cincinnati
• Howard M. Metzenbaum United States Courthouse, listed on the NRHP in Cleveland as "Old Federal Building and Post Office"
• Franklinton Post Office, in Columbus, OH, listed on the NRHP in Ohio
• U.S. Post Office and Courthouse (Columbus, Ohio), listed on the NRHP in Ohio
• Old Post Office and Federal Building (Dayton, Ohio), in Dayton, OH, listed on the NRHP in Ohio
• East Liverpool Post Office, in East Liverpool, OH, listed on the NRHP in Ohio
• U.S. Post Office (Elyria, Ohio), listed on the NRHP in Ohio
• Old Log Post Office, listed on the NRHP in Franklin
• U.S. Post Office (Lima, Ohio), listed on the NRHP in Lima
• U.S. Post Office (Lorain, Ohio), listed on the NRHP in Ohio
• Old U.S. Post Office (Marion, Ohio), NRHP-listed
• U.S. Post Office (Sandusky, Ohio), listed on the NRHP in Ohio
• Old Central Post Office in Toledo, OH, listed on the NRHP in Ohio
• Mill Office and Post Office, listed on the NRHP in Woodsdale, Ohio
• United States Post Office and Federal Building (Zanesville, Ohio), listed on the NRHP in Zanesville

• Kingfisher Post Office, in Kingfisher, OK, NRHP-listed
• United States Post Office Madill, in Madill, OK, NRHP-listed
• United States Post Office and Courthouse (Muskogee, Oklahoma), NRHP-listed
• United States Post Office (Norman, Oklahoma), NRHP-listed
• United States Post Office Nowata, in Nowata, OK, NRHP-listed
• United States Post Office, Courthouse, and Federal Office Building (Oklahoma City, Oklahoma), NRHP-listed
• United States Post Office and Courthouse (Tulsa, Oklahoma), NRHP-listed
• Woodward Federal Courthouse and Post Office, in Woodward, OK, NRHP-listed

• U.S. Post Office (Astoria, Oregon), listed on the NRHP
• Old U.S. Post Office (Bend, Oregon), listed on the NRHP
• U.S. Post Office (Eugene, Oregon), listed on the National Register of Historic Places in Lane County
• United States Post Office (The Dalles, Oregon, 1916), listed on the NRHP
• U.S. Post Office and Federal Building (La Grande, Oregon), listed on the NRHP
• U.S. Post Office and Courthouse (Medford, Oregon), listed on the NRHP
• United States Post Office and Courthouse (Pendleton, Oregon), listed on the NRHP
• 511 Federal Building, a former post office, listed on the NRHP
• St. Johns Post Office (Portland, Oregon), listed on the NRHP
• U.S. Post Office (Roseburg, Oregon), listed on the NRHP
• United States Post Office (Scappoose, Oregon), listed on the NRHP
• U.S. Post Office (Tillamook, Oregon), listed on the National Register of Historic Places in Tillamook County

• United States Post Office (Charleroi, Pennsylvania), listed on the NRHP in Washington County
• United States Post Office (Connellsville, Pennsylvania), listed on the NRHP in Fayette County
• Erie Federal Courthouse and Post Office, in Erie, listed on the NRHP in Erie County
• United States Post Office (Hanover, Pennsylvania), listed on the NRHP in York County
• United States Post Office (Lancaster, Pennsylvania), listed on the NRHP in Lancaster County
• United States Post Office (Oil City, Pennsylvania), listed on the NRHP in Venango County
• United States Post Office-Main Branch (Philadelphia), listed on the NRHP in Philadelphia County
• United States Court House and Post Office Building (currently known as the Robert N. C. Nix Sr. Federal Building), in Philadelphia, listed on the NRHP in Philadelphia County
• Allegheny Post Office, Pittsburgh, listed on the NRHP in Allegheny County and now part of the Children's Museum of Pittsburgh
• United States Post Office and Courthouse (Pittsburgh, Pennsylvania), listed on the NRHP in Allegheny County
• United States Post Office (Punxsutawney, Pennsylvania), listed on the NRHP in Jefferson County
• United States Post Office-Sewickley Branch, Sewickley, listed on the NRHP in Allegheny County
• United States Post Office (West Chester, Pennsylvania), listed as a contributing property on the NRHP in Chester County
• United States Post Office (Williamsport, Pennsylvania), listed on the NRHP in Lycoming County

• Luis A. Ferré United States Courthouse and Post Office Building, Ponce, Puerto Rico, NRPH-listed as "United States Courthouse and Post Office Building"
• Miguel Angel García Méndez Post Office Building, Mayaguez, Puerto Rico, NRHP-listed as "U.S. Post Office and Courthouse"
• Jose V. Toledo Federal Building and United States Courthouse, San Juan, Puerto Rico, NRHP-listed as "U.S. Post Office and Courthouse"

• Bristol Customshouse and Post Office, Bristol, Rhode Island
• Pawtucket Post Office, Pawtucket, Rhode Island
• United States Post Office (Westerly, Rhode Island)
• United States Post Office (Woonsocket, Rhode Island)

• Bamberg Post Office, in Bamberg, SC, listed on the NRHP
• United States Post Office and Courthouse (Charleston, South Carolina), listed on the NRHP
• United States Post Office (Florence, South Carolina), listed on the NRHP
• Old Greenville City Hall, Greenville, South Carolina, also known as United States Post Office and Courthouse
• Hartsville Post Office, in Hartsville, SC, listed on the NRHP
• Monticello Store and Post Office, in Monticello, SC, listed on the NRHP
• Price's Post Office, in Moore, listed on the NRHP
• United States Post Office and Courthouse (Rock Hill, South Carolina), listed on the NRHP

• United States Post Office and Courthouse–Aberdeen
• Leola Post Office, listed on the NRHP in South Dakota
• Old Spearfish Post Office, NRHP-listed in Lawrence County
• Marindahl Post Office, in Volin, NRHP-listed in Yankton County
• Old Post Office (Watertown, South Dakota), listed on the NRHP in South Dakota
• Lemmon post office

• United States Post Office-Shelby Street Station, in Bristol, TN, listed on the NRHP in Tennessee
• United States Post Office (Camden, Tennessee), listed on the NRHP in Tennessee
• Joel W. Solomon Federal Building and United States Courthouse, Chattanooga, Tennessee, listed on the NRHP as U.S. Post Office
• Old Post Office (Chattanooga, Tennessee), listed on the NRHP in Tennessee
• Customs House Museum and Cultural Center, a former customs house and former post office in Clarksville
• United States Post Office (Cleveland, Tennessee), listed on the NRHP in Tennessee
• Dickson Post Office, in Dickson, TN, listed on the NRHP in Tennessee
• United States Post Office (Elizabethton, Tennessee), listed on the NRHP in Tennessee
• United States Post Office and Mine Rescue Station, in Jellico, TN, listed on the NRHP in Tennessee
• Knoxville Post Office
• Old Post Office Building (Knoxville, Tennessee)
• United States Post Office (Martin, Tennessee), listed on the NRHP in Tennessee
• United States Post Office-Main, in McMinnville, TN, listed on the NRHP in Tennessee
• United States Post Office-Front Street Station, in Memphis, TN, listed on the NRHP in Tennessee
• United States Post Office (Milan, Tennessee), listed on the NRHP in Tennessee
• United States Post Office (Morristown, Tennessee), listed on the NRHP in Tennessee
• United States Post Office (Nashville, Tennessee)
• United States Post Office-Old Hickory, in Old Hickory, TN, listed on the NRHP in Tennessee
• United States Post Office (Ripley, Tennessee), listed on the NRHP in Tennessee
• United States Post Office-Sevierville, in Sevierville, TN, listed on the NRHP in Tennessee
• United States Post Office (Trenton, Tennessee), listed on the NRHP in Tennessee
• United States Post Office (Union City, Tennessee), listed on the NRHP in Tennessee

• J. Marvin Jones Federal Building and United States Courthouse, Amarillo, Texas
• Arlington Post Office, in Arlington, TX, listed on the NRHP in Texas
• O. Henry Hall, listed on the NRHP in Austin as U.S. Post Office and Federal Building
• Beeville Post Office, in Beeville, TX, listed on the NRHP in Texas
• United States Post Office-Federal Building-Brenham, in Brenham, TX, listed on the NRHP in Texas
• Copperas Cove Stagestop and Post Office, in Copperas Cove, TX, listed on the NRHP in Texas
• U.S. Post Office (El Paso, Texas), listed on the NRHP in Texas
• United States Post Office (Fort Worth, Texas), listed on the NRHP in Texas
• Galveston U.S. Post Office and Courthouse, listed on the NRHP in Galveston
• Graham Post Office, in Graham, TX, listed on the NRHP in Texas
• Post Office Building (Greenville, Texas), listed on the NRHP in Greenville
• U.S. Post Office (Hillsboro, Texas), listed on the NRHP in Texas
• Jacksonville Post Office, in Jacksonville, TX, listed on the NRHP in Texas
• Old U.S. Post Office and Courts Building (Jefferson, Texas), NRHP-listed
• Laredo United States Post Office, Court House and Custom House, listed on the NRHP in Laredo
• Lubbock Post Office and Federal Building, in Lubbock, TX, listed on the NRHP in Texas
• Marshall U.S. Post Office, in Marshall, Texas, listed on the NRHP in Harrison County, Texas
• Post Office Building, Old (Nacogdoches, Texas), in Nacogdoches, TX, listed on the NRHP in Texas
• Post Office-Palestine, in Palestine, TX, listed on the NRHP in Texas
• United States Post Office-Pampa Main, in Pampa, TX, listed on the NRHP in Texas
• United States Post Office and Federal Building (Port Arthur, Texas), in Port Arthur, TX, listed on the NRHP in Texas
• de la Pena, Silverio, Drugstore and Post Office, in Rio Grande City, TX, listed on the NRHP in Texas
• Hipolito F. Garcia Federal Building and United States Courthouse, listed on the NRHP in San Antonio as "US Post Office and Courthouse"
• Sherman US Post Office and Courthouse, Sherman, TX, listed on the NRHP in Texas
• United States Post Office (Stamford, Texas), listed on the NRHP in Texas
• Tyler US Post Office and Courthouse, Tyler, TX, listed on the NRHP in Texas
• Old Federal Building and Post Office (Victoria, Texas), listed on the NRHP in Texas

• U.S. Post Office–Beaver Main, Beaver, Utah, NRHP-listed in Beaver County
• U.S. Post Office-Cedar City Main, in Cedar City, Utah, NRHP-listed in Iron County
• Echo Post Office, in Echo, Utah, NRHP-listed in Summit County
• U.S. Post Office-Eureka Main, in Eureka, Utah, NRHP-listed in Juab County, Utah
• U.S. Post Office-Helper Main, in Helper, Utah, NRHP-listed in Carbon County
• U.S. Post Office-Nephi Main, in Nephi, Utah, NRHP-listed in Juab County, Utah
• U.S. Post Office and Courthouse (Ogden, Utah)
• U.S. Post Office-Price Main, in Price, Utah, NRHP-listed in Carbon County,
• U.S. Post Office-Richfield Main, in Richfield, Utah, NRHP-listed in Sevier County
• Deseret Telegraph and Post Office, in Rockville, Utah, NRHP-listed in Washington County
• U.S. Post Office-Sugar House, in Salt Lake City, Utah, NRHP-listed Salt Lake City
• U.S. Post Office-Springville Main, in Springville, Utah, NRHP-listed in Utah County

• Bennington Post Office, Bennington, Vermont
• United States Post Office and Customhouse (Burlington, Vermont)
• Grafton Post Office, Grafton, Vermont
• United States Courthouse, Post Office and Customs House (Newport, Vermont)

• United States Post Office-Arlington
• United States Post Office and Courthouse (Big Stone Gap, Virginia)
• Brooklyn Store and Post Office
• United States Post Office-Christiansburg
• Edom Store and Post Office
• Little Post Office, in Martinsville, Virginia
• Walter E. Hoffman United States Courthouse, listed on the NRHP as U.S. Post Office and Courthouse
• Lewis F. Powell Jr. United States Courthouse, listed on the NRHP as U.S. Post Office and Customhouse
• Salem Post Office

• Auburn Post Office, in Auburn, WA, listed on the NRHP in Washington
• United States Post Office and Courthouse (Bellingham, Washington)
• United States Post Office-Bremerton Main, in Bremerton, WA, listed on the NRHP in Washington
• United States Post Office-Camas Main, in Camas, WA, listed on the NRHP in Washington
• United States Post Office-Centralia Main, in Centralia, WA, listed on the NRHP in Washington
• United States Post Office-Chehalis Main, in Chehalis, WA, listed on the NRHP in Washington
• Chimacum Post Office, in Chimacum, WA, listed on the NRHP in Washington
• United States Post Office-Clarkston Main, in Clarkston, WA, listed on the NRHP in Washington
• United States Post Office-Colfax Main, in Colfax, WA, listed on the NRHP in Washington
• United States Post Office-Colville Main, in Colville, WA, listed on the NRHP in Washington
• Doe Bay General Store and Post Office, in Doe Bay, Orcas Island, WA, listed on the NRHP in Washington
• United States Post Office and Customshouse, in Everett, Washington, listed on the NRHP in Washington
• United States Post Office-Hoquiam Main, in Hoquiam, WA, listed on the NRHP in Washington
• United States Post Office-Kelso Main, in Kelso, WA, listed on the NRHP in Washington
• United States Post Office-Longview Main, in Longview, WA, listed on the NRHP in Washington
• United States Post Office-Lyden Main, in Lyden, WA, listed on the NRHP in Washington
• United States Post Office-Montesano Main, in Montesano, WA, listed on the NRHP in Washington
• United States Post Office-Okanogan Main, in Okanogan, WA, listed on the NRHP in Washington
• United States Post Office (Olympia, Washington), listed on the NRHP in Washington
• United States Post Office-Omak Main, in Omak, WA, listed on the NRHP in Washington
• United States Post Office (Port Angeles, Washington), listed on the NRHP in Washington
• United States Post Office-Port Townsend Main
• United States Post Office-Prosser Main, in Prosser, WA, listed on the NRHP in Washington
• United States Post Office-Pullman, in Pullman, WA, listed on the NRHP in Washington
• United States Post Office-Raymond Main, in Raymond, WA, listed on the NRHP in Washington
• United States Post Office-Queen Anne Post Office, in Seattle, WA, listed on the NRHP in Washington
• United States Post Office-Sedro Woolley Main, in Sedro Woolley, WA, listed on the NRHP in Washington
• United States Post Office, Courthouse, and Custom House (Spokane, Washington)
• United States Post Office-Sunnyside Main, in Sunnyside, WA, listed on the NRHP in Washington
• United States Post Office-Tacoma Downtown Station-Federal Building, in Tacoma, WA, listed on the NRHP in Washington
• United States Post Office-Toppenish Main, in Toppenish, WA, listed on the NRHP in Washington
• United States Post Office-Vancouver Main, in Vancouver, WA, listed on the NRHP in Washington
• United States Post Office-Walla Walla Main, in Walla Walla, WA, listed on the NRHP in Washington
• United States Post Office and Annex, in Wenatchee, WA, listed on the NRHP in Washington
• William O. Douglas Federal Building, listed on the NRHP as U.S. Post Office and Courthouse, Yakima, Washington

• Postal Square Building, current home to the National Postal Museum
• General Post Office (Washington, D.C.), NRHP-listed
• Customhouse and Post Office (Washington, D.C.), NRHP-listed
• Old Post Office Pavilion, listed on the NRHP as "Old Post Office and Clock Tower"

• U.S. Post Office and Courthouse (Huntington, West Virginia), NRHP-listed, in Cabell County
• Old Morgantown Post Office, NRHP-listed, also known as Monongalia Arts Center
• St. Albans Post Office, NRHP-listed, in Kanawha County

• Antigo Post Office, in Antigo, Wisconsin, listed on the NRHP in Langlade County
• Old Ashland Post Office, listed on the NRHP in Ashland County
• Berlin Post Office, in Berlin, Wisconsin, listed on the NRHP in Green Lake County
• Chilton Post Office, Chilton, Wisconsin, NRHP-listed, in Calumet County
• Clintonville Post Office, in Clintonville, Wisconsin, listed on the NRHP in Waupaca County
• Columbus Post Office, in Columbus, Wisconsin, listed on the NRHP in Columbia County
• Delavan Post Office, in Delavan, Wisconsin, listed on the NRHP in Walworth County
• Edgerton Post Office, in Edgerton, Wisconsin, listed on the NRHP in Rock County
• Elkhorn Post Office, in Elkhorn, Wisconsin, listed on the NRHP in Walworth County
• United States Post Office and Courthouse (Eau Claire, Wisconsin), NRHP-listed, in Eau Claire County
• Former United States Post Office (Kaukauna, Wisconsin), listed on the NRHP in Outagamie County
• Kewaunee Post Office, in Kewaunee, Wisconsin, listed on the NRHP in Kewaunee County
• Lancaster Post Office, in Lancaster, Wisconsin, listed on the NRHP in Grant County
• United States Post Office and Federal Courthouse, in Madison, Wisconsin, listed on the NRHP in Dane County
• Marshfield Post Office, in Marshfield, Wisconsin, listed on the NRHP in Wood County
• Medford Post Office, in Medford, Wisconsin, listed on the NRHP in Taylor County
• US Post Office-Menasha, in Menasha, Wisconsin, listed on the NRHP in Winnebago County
• Merrill Post Office, in Merrill, Wisconsin, listed on the NRHP in Lincoln County
• Neenah United States Post Office, in Neenah, Wisconsin, listed on the NRHP in Winnebago County
• Neillsville Post Office, in Neillsville, Wisconsin, listed on the NRHP in Clark County
• Oconto Main Post Office in Oconto, Wisconsin, listed on the NRHP in Oconto County
• Park Falls Post Office, in Park Falls, Wisconsin, listed on the NRHP in Price County
• Plymouth Post Office, in Plymouth, Wisconsin, listed on the NRHP in Sheboygan County
• Prairie du Chien Post Office, in Prairie du Chien, Wisconsin, listed on the NRHP in Crawford County
• Shawano Post Office, Shawano, Wisconsin, listed on the NRHP in Shawano County
• Sheboygan Post Office, Sheboygan, Wisconsin, listed on the NRHP in Wisconsin
• South Milwaukee Post Office, South Milwaukee, Wisconsin, listed on the NRHP in Milwaukee County
• Sturgeon Bay Post Office, listed on the NRHP in Door County
• Tomah Post Office, Tomah, Wisconsin, listed on the NRHP in Monroe County
• Two Rivers Post Office, Two Rivers, Wisconsin, listed on the NRHP in Manitowoc County
• Waukesha Post Office, in Waukesha, Wisconsin, listed on the NRHP in Waukesha County
• Waupaca Post Office, in Waupaca, Wisconsin, listed on the NRHP in Waupaca County
• Waupun Post Office, in Waupun, Wisconsin, listed on the NRHP in Fond du Lac County
• United States Post Office and Court House (Wausau, Wisconsin), listed on the NRHP in Marathon County
• West Allis Post Office, in West Allis, Wisconsin, listed on the NRHP in Milwaukee County
• West Bend Post Office, in West Bend, Wisconsin, listed on the NRHP in Washington County
• Whitewater Post Office, in Whitewater, Wisconsin, listed on the NRHP in Walworth County
• US Post Office-Racine Main, in Racine, Wisconsin, listed on the NRHP in Racine County

• United States Post Office (Basin, Wyoming), NRHP-listed
• Buffalo Main Post Office, NRHP-listed
• United States Post Office (Douglas, Wyoming), NRHP-listed
• Evanston Main Post Office, NRHP-listed as U.S. Post Office-Evanston Main
• United States Post Office–Green River, NRHP-listed
• United States Post Office (Greybull, Wyoming), NRHP-listed
• Sussex Post Office and Store, Kaycee, Wyoming, NRHP-listed, in Johnson County
• United States Post Office (Kemmerer, Wyoming), NRHP-listed
• United States Post Office and Courthouse (Lander, Wyoming), NRHP-listed
• United States Post Office (Newcastle, Wyoming), NRHP-listed
• United States Post Office (Powell, Wyoming), NRHP-listed
• Thermopolis Main Post Office, NRHP-listed
• United States Post Office (Torrington, Wyoming), NRHP-listed
• United States Post Office (Yellowstone National Park), NRHP-listed

• Federal Building and Post Office (disambiguation)
• List of New Deal sculpture
• List of United States post office murals
• Old Post Office (disambiguation)
• United States post office murals
• U.S. Post Office and Courthouse (disambiguation)
• U.S. Post Office and Customhouse (disambiguation)