Harpswell is a town in Cumberland County, Maine, United States, within Casco Bay in the Gulf of Maine. The population was 5,031 at the 2020 census.^[2] Harpswell is composed of land contiguous with the rest of Cumberland County, called Harpswell Neck, as well as three large islands connected by bridges: Sebascodegan Island (locally known as Great Island), Orr's Island, and Bailey Island and over 200 smaller islands. Harpswell is part of the Portland–South Portland–Biddeford, Maine Metropolitan Statistical Area.

The Native Americans who originally inhabited Harpswell were part of the Abenaki. The Abenaki name for Harpswell Neck, then called West Harpswell, was Merriconeag or "quick carrying place", a reference to the narrow peninsula's easy portage. The Abenaki name for Great Island was Erascohegan or Sebascodiggin,^[3] which became by the late 1800s Sebascodegan Island. About 1659 Major Nicholas Shapleigh of Kittery, Maine, bought Merriconeag and Sebascodegan Island from the Abenaki, but because of Indian defense, attempts to settle the area were abandoned until after Dummer's War. The Treaty of 1725 brought a truce, and by 1731 many settlers had returned.^[4]

Formerly a part of North Yarmouth, in 1758 the town was incorporated by the Massachusetts General Court and named for Harpswell in Lincolnshire, England.^[5] Industries included farming and some shipbuilding, but fishing brought considerable profit, and lobstering still contributes to the local economy.^{[citation needed]} The Bailey Island Bridge is a National Historic Civil Engineering Landmark.

According to the United States Census Bureau, the town has a total area of 127.69 square miles (330.72 km²), of which 24.18 square miles (62.63 km²) is land and 103.51 square miles (268.09 km²) is water.^[1] The town is situated on Casco Bay in the Gulf of Maine, part of the Atlantic Ocean. Harpswell has about 216 miles (348 km) of coastline.^[6]

The town is crossed by state routes 24 and 123. It is bordered by the town of Brunswick to the north, and is separated by the New Meadows River from West Bath to the northeast and Phippsburg to the east.

Fire protection services are provided in Harpswell by three unique and nonrelated volunteer fire departments. All three departments provide EMS services and operate ambulances. A town contracted paramedic is stationed 24/7 at the town hall.

• Harpswell Neck Fire Department
• Orr's and Bailey Island Fire Department
• Cundy's Harbor Fire Department

Law enforcement services are provided by the Cumberland County Sheriff's Office.

• John Chryssavgis, author, theologian
• Patrick Dempsey, actor
• Stephen M. Etnier, artist
• Cheryl Golek, politician
• Richard Jacques, military officer
• Elijah Kellogg, minister, lecturer, author
• Hilton Kramer, art critic, essayist
• Samuel Merritt, physician, businessman, mayor, regent^[10]
• Edna St. Vincent Millay, poet^[11]
• James L. Nelson, novelist
• Robert Peary, explorer
• Alexander Petrunkevitch, Yale professor and arachnologist

Public schools in the area are operated by Maine School Administrative District 75. During the 2010–2011 school year, Harpswell residents voted to close the West Harpswell School, one of the town's two K–5 elementary schools. Beginning in 2011–2012, West Harpswell students began being bused to the Harpswell Islands School. It was due to save approximately $200,000 a year.^[12] In September 2013, Harpswell Coastal Academy, a charter school serving grades 6–12 opened in the old West Harpswell School. There is a private preschool, the Harpswell Nature School, residing within the Elijah Kellogg Church (not religiously affiliated) that was established in 2003 under the name Harpswell Community Nursery School, with four teachers and twenty-four students ages 3–5.

The fictional murder mystery Blow the Man Down was filmed in Harpswell in 2018.^[13] The name of the town in the film is changed to Easter Cove, Maine.

The Marvel Comics superhero Carol Danvers has a family home in Harpswell.^[14]

• Eagle Island State Historic Site, summer home of Admiral Robert Peary
• Harpswell Historical Society Museum and the adjacent Harpswell Cattle Pound
• Ragged Island – Summer home of Edna St. Vincent Millay
• Bailey Island Cribstone Bridge