The Indianapolis metropolitan area is an 11-county metropolitan area in the U.S. state of Indiana. Its principal cities are Indianapolis, Carmel, Greenwood, and Anderson.^[1] Other primary cities with populations of more than 50,000 include Fishers, Noblesville, and Westfield. Located in Central Indiana, it is the largest metropolitan area entirely within Indiana and the seventh largest in the American Midwest.

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Indianapolis Metropolitan Area
Metropolitan Statistical Area
Indianapolis–Carmel–Greenwood, IN MSA
From top, left to right: Indianapolis skyline from White River, Indianapolis 500, The Palladium at the Center for the Performing Arts in Carmel, downtown Anderson, downtown Noblesville
Map of Indianapolis–Carmel–Muncie, IN CSA   Indianapolis (balance)   Indianapolis–Carmel–Greenwood MSA   Muncie MSA   Columbus MSA   Kokomo MSA   New Castle µSA   Seymour µSA   Crawfordsville µSA   Greencastle µSA   Peru µSA   Greensburg µSA
Country	United States
State	Indiana
Principal cities[1]	Indianapolis (balance) Carmel Greenwood Anderson
Area
• Metropolitan Statistical Area	6,028.83 sq mi (15,614.6 km2)
Population  (2020)[2]
• Urban	1,699,881 (32nd)
• Urban density	2,352.6/sq mi (908.4/km2)
• MSA	2,111,040 (33rd)
• CSA	2,492,514 (28th)
GDP [3]
• MSA	$184.4 billion (2022)
Time zone	UTC-5 (EST)
• Summer (DST)	UTC-4 (EDT)
ZIP Codes	460xx, 461xx, 462xx, 466xx, 469xx
Area codes	317, 463, 765, 812, 930

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There are two official metropolitan boundaries for the Indianapolis metro area: the Indianapolis–Carmel–Greenwood, IN Metropolitan Statistical Area (MSA) and the Indianapolis–Carmel–Muncie, IN Combined Statistical Area (CSA). The two regions are identical except for the addition of three metropolitan areas (Columbus, Kokomo, and Muncie) and six micropolitan statistical areas (Crawfordsville, Greencastle, Greensburg, Seymour, New Castle, and Peru) to the Indianapolis–Carmel–Muncie CSA that are not included in the Indianapolis–Carmel–Greenwood MSA. The population of the MSA was 2,111,040 and the population of the CSA was 2,457,286 as of the 2020 Census.

The Indianapolis metropolitan area is a major center for agribusiness, distribution and logistics, life sciences, manufacturing, and motorsports. In 2021, the gross domestic product of the Indianapolis metropolitan area was (USD) $162.1 billion, among the 30 largest metropolitan economies in the U.S.^[4] In 2023, the Indianapolis metropolitan area was home to three Fortune 500 companies and six Fortune 1000 companies. The metropolitan area is home to several higher education institutions, including Anderson University, Butler University, Franklin College, Indiana University–Purdue University Indianapolis, Marian University, and the University of Indianapolis, among others. Ivy Tech Community College has several campuses throughout the region.

In the 2020 Census, there were 2,111,040 people residing in the MSA. The racial demographics were 69.6% White, 15.0% Black or African-American, 0.4% American Indian or Alaska Native, 3.9% Asian, 4.5% Other and 6.6% Two or More Races. 8.4% of the population were Hispanic or Latino.^[6]

As of 2023^[update], the Indianapolis–Carmel–Muncie, IN Combined Statistical Area (CSA) consists of four metropolitan statistical areas (MSAs) and six micropolitan statistical areas (µSAs) covering 20 counties.^[1] In 2022, the CSA's population estimate was 2,631,863, ranking as the 27th largest in the U.S.

• Indianapolis–Carmel–Greenwood Metropolitan Statistical Area (11 counties: Marion, Hamilton, Hendricks, Johnson, Madison, Hancock, Morgan, Boone, Shelby, Brown, and Tipton); population: 2,089,673 (2020)
• Muncie, IN Metropolitan Statistical Area (Delaware County); population: 111,903
• Kokomo, IN Metropolitan Statistical Area (Howard County); population: 83,658
• Columbus, IN Metropolitan Statistical Area (Bartholomew County); population: 82,208
• New Castle, IN Micropolitan Statistical Area (Henry County); population: 48,914
• Seymour, IN Micropolitan Statistical Area (Jackson County); population: 46,428
• Crawfordsville, IN Micropolitan Statistical Area (Montgomery County); population: 37,936
• Greencastle, IN Micropolitan Statistical Area (Putnam County); population: 36,726
• Peru, IN Micropolitan Statistical Area (Miami County); population: 35,962
• Greensburg, IN Micropolitan Statistical Area (Decatur County); population: 26,472

The 317 area code covered all of northern and central Indiana until 1948 when the 219 area code was created. Central Indiana remained under the 317 banner until 1997 when growth in and around Indianapolis prompted the creation of 765 area code.

The 317 area code covers the Indianapolis metropolitan area. The counties covered by 317 are Boone, Hancock, Hamilton, Hendricks, Johnson, Madison, Morgan, and Shelby.

According to the Indiana Office of Utility Consumer Counselor, the 317 area code was expected to run out of numbers in 2017.^[7] Overlay area code 463 was implemented in late 2016, thereby requiring 10-digit dialing.^[8]

In 2021, the gross domestic product of the Indianapolis metropolitan area was (USD) $162.1 billion, among the 30 largest metropolitan economies in the U.S.^[4] In 2021, the Indianapolis metropolitan area was home to three Fortune 500 companies and six Fortune 1000 companies.^[10] The largest public companies based in the Indianapolis metropolitan area were:

Private companies based in the Indianapolis MSA include financial services company OneAmerica Financial, agricultural cooperative CountryMark, and regional airline Republic Airways Holdings.^[12] Other notable companies based in the region include Angi, Barnes & Thornburg, BSA LifeStructures, Complexly, Delta Faucet Company, Emmis Corporation, Envigo, Finish Line, First Internet Bancorp, Formstack, Hackett Publishing Company, Herff Jones, Hubstaff, KLH Audio, Klipsch Audio Technologies, Lids, Lucas Oil Products, Monarch Beverage, Noble Roman's, Pay Less Super Markets, Remy International, and Steak 'n Shake.

The Indianapolis metropolitan area is a major hub for motorsports, specifically American open-wheel car racing.^[13] Notable facilities include Anderson Speedway in Anderson, the Indianapolis Motor Speedway in Speedway, and Lucas Oil Indianapolis Raceway Park in Brownsburg, among many others.^[14] Racing teams based in the area include Andretti Autosport, Arrow McLaren, Chip Ganassi Racing, Ed Carpenter Racing, and Juncos Hollinger Racing in Indianapolis; Dreyer & Reinbold Racing in Carmel, HMD Motorsports in Brownsburg, and Rahal Letterman Lanigan Racing in Zionsville, among numerous others.^[15] Italian racecar manufacturer Dallara opened a facility in Speedway in 2012.^[16]

More than 40 collegiate fraternities and sororities are headquartered in the Indianapolis metropolitan area, the largest concentration in North America.^[17][18]

The Indianapolis metropolitan area is home to several higher education institutions, including:

The ‡ symbol denotes university branches whose main campuses are located outside the Indianapolis metropolitan area.

• Great Lakes Megalopolis
• List of United States combined statistical areas
• List of United States metropolitan statistical areas by population