Facts about Marion County, IN
Marion County is located in the U.S. state of Indiana. The county seat is Indianapolis, the state capital and largest city. Marion County is consolidated with Indianapolis through an arrangement known as Unigov.
GeographyAccording to the 2010 census, the county has an area of 403.01 square miles (1,043.8 km²), of which 396.30 square miles (1,026.4 km²) (or 98.34%) is land and 6.71 square miles (17.4 km²) (or 1.66%) is water.
DemographicsAs of the 2010 United States Census, there were 903,393 people, 366,176 households, and 218,338 families in the county. The population density was 2,279.6 inhabitants per square mile (880.2/km²). There were 417,862 housing units at an average density of 1,054.4 per square mile (407.1/km²).
Serving Marion County, IN

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