Marion County, Indiana

Marion County
County
City-County Building
Location within the U.S. state of Indiana
Indiana's location within the U.S.
Coordinates: 39°47′N 86°08′W / 39.78°N 86.14°W / 39.78; -86.14
Country	United States
State	Indiana
Founded	April 1, 1822
Named for	Francis Marion
Seat	Indianapolis
Largest city	Indianapolis
Area
• Total	403.01 sq mi (1,043.8 km2)
• Land	396.30 sq mi (1,026.4 km2)
• Water	6.71 sq mi (17.4 km2)
Population  (2020)
• Total	977,203
• Estimate  (2023)	968,460
• Density	2,400/sq mi (940/km2)
Time zone	UTC−5 (Eastern)
• Summer (DST)	UTC−4 (EDT)
Congressional districts	6th, 7th
Website	www.indy.gov/eGov/County
Indiana county number 49 Most populous county in Indiana Currently only Unigov county in Indiana

Marion County is located in the U.S. state of Indiana. The 2020 United States census reported a population of 977,203,^[1] making it the most populous county in the state and the 54th-most populous county in the U.S. Indianapolis is the county seat, the state capital, and most populous city.^[2] Marion County is consolidated with Indianapolis through an arrangement known as Unigov. Marion County is the central county of the Indianapolis–Carmel–Anderson MSA in Central Indiana.