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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 54th-most populous county in the U.S., the most populous county in the state, and the main population center of the 11-county Indianapolis–Carmel–Greenwood MSA in central Indiana.
Discover Indiana's counties with ease using our interactive county map resource. Whether you're a resident or a visitor, this map provides a convenient platform to access a wealth of information and resources specific to each county.
Home of the City of Indianapolis, Marion County was named in honor of Revolutionary War General Francis Marion. It was organized in 1821 when the state decided to move its capital to a more central location.
Marion is a city in and the county seat of Grant County, Indiana, United States, along the Mississinewa River. The population was 28,310 as of the 2020 census. It is named for Francis Marion, a brigadier general from South Carolina in the American Revolutionary War.
Indianapolis & Marion County are represented by several elected officials. Learn more about these representatives and their offices below.
In 2022, Marion County, IN had a population of 972k people with a median age of 34.4 and a median household income of $59,504. Between 2021 and 2022 the population of Marion County, IN grew from 969,542 to 971,737, a 0.226% increase and its median household income grew from $54,601 to $59,504, a 8.98% increase.
Washington Township is one of the nine townships of Marion County, Indiana, located in the northern part of the county. The township is entirely within the city of Indianapolis. The population as of the 2020 census was 138,678, up from 132,049 at the 2010 census.
Marion County is a county in the U.S. state of Indiana. As of the 2020 census, the county's population was 977,203. The county seat is Indianapolis, the state capital and largest city. Marion County and Indianapolis share the same government. Cities. Beech Grove; Indianapolis; Lawrence; Southport; Towns. Clermont
Marion County Health Department. Official Home Page. Health and Hospital Corporation of Marion County’s Division of Public Health is known as the Marion County Public Health Department (MCPHD). MCPHD has served the residents and visitors of Marion County, Indiana for nearly 100 years.
Census data for Marion County, IN (pop. 969,466), including age, race, sex, income, poverty, marital status, education and more.
