County · Indiana
Marion County, Indiana
Marion County, Indiana. Marion County had 992,196 residents in 2025 by the Census Bureau's estimate, up 1.5% since 2020, slower than Indiana (+2.8%). It holds 25 places (16 cities, villages and boroughs and 9 towns and townships) and 253 census tracts. GEOID 18097.
Marion County is one of the 11 counties of the Indianapolis-Carmel-Greenwood, IN metropolitan statistical area (the Census Bureau's July 2023 delineation).
Residents, July 2025 estimate
992,196
Census Bureau estimate (no margin published)
2020 Census count: 977,203 · ACS 2020-2024: 975,809
Median household income
$66,346
±$943 (90% margin)
Indiana: $71,957
Median home value
$224,000
±$2,242 (90% margin)
Indiana: $218,200
Median gross rent
$1,153
±$10 (90% margin)
Indiana: $1,062
How many people live in Marion County, and is it growing?
The 2020 Census counted 977,203 residents in Marion County. The Census Bureau estimates 992,196 for July 1, 2025, up 1.5% since 2020, slower than Indiana (+2.8%). The 2020-2024 American Community Survey puts the population at 975,809 over 396 square miles of land.
| Measure | Marion County | Indiana | Change since 2015-2019 |
|---|---|---|---|
| Total population | 975,809 | 6,851,073 | +23,940 |
| Households | 400,432±1,895 | 2,716,009 | +28,074 |
| Average household size | 2.40±0.01 | 2.46 | −0.11 |
| Housing units | 441,040±138 | 2,976,568 | +17,694 |
Marion County's population since 2000
From 860,454 in 2000 to 992,196 in 2025: up 15.3%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov
What cities and towns are in Marion County?
Marion County holds 25 places: 16 cities, villages and boroughs (incorporated places) and 9 towns and townships (county subdivisions with their own government). The largest is Indianapolis with 901,116 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
| Indianapolis | 887,642 | $66,219 |
|---|---|---|
| Center Township, Marion County | 153,549 | $55,129 |
| Wayne Township, Marion County | 148,444 | $57,059 |
| Washington Township, Marion County | 138,678 | $77,416 |
| Lawrence Township | 122,321 | $72,081 |
| Perry Township, Marion County | 121,768 | $66,897 |
| Warren Township, Marion County | 106,191 | $58,962 |
| Pike Township, Marion County | 83,030 | $69,398 |
| Franklin Township, Marion County | 66,271 | $97,383 |
| Lawrence | 49,370 | $74,022 |
| Decatur Township | 36,951 | $70,206 |
| Beech Grove | 14,717 | $49,973 |
| Speedway | 13,952 | $60,147 |
| Cumberland | 5,954 | $87,364 |
| Southport | 2,123 | $71,058 |
| Meridian Hills | 1,774 | $211,528 |
| Warren Park | 1,490 | $42,906 |
| Clermont | 1,384 | $82,083 |
| Homecroft | 752 | $78,942 |
| Rocky Ripple | 655 | $72,813 |
| Williams Creek | 430 | $250,000 or more |
| Wynnedale | 215 | $111,250 |
| Spring HillGEOID 1872232 | 95 | $138,750 |
| Crows NestGEOID 1816156 | 67 | $250,000 or more |
| North Crows NestGEOID 1854612 | 44 | $250,000 or more |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov
Who lives in Marion County?
The median resident of Marion County is 34.4 years old; 25.0% are under 18 and 13.2% are 65 or older. The largest group is non-Hispanic white residents at 49.5%, then non-Hispanic Black residents at 27.1%. 12.6% of residents were born outside the United States.
| Measure | Marion County | Indiana | Change since 2015-2019 |
|---|---|---|---|
| Median age | 34.4±0.1 | 38.1 | no clear change |
| Under 18 years | 25.0%±0.1 pts | 23.3% | – |
| 65 years and over | 13.2%±0.1 pts | 16.8% | – |
| Hispanic or Latino (any race) | 13.8% | 8.6% | +3.4 pts |
| White alone, not Hispanic | 49.5%±0.1 pts | 75.4% | −5.7 pts |
| Black or African American alone, not Hispanic | 27.1%±0.3 pts | 9.1% | −0.5 pts |
| Asian alone, not Hispanic | 4.0%±0.1 pts | 2.6% | +0.7 pts |
| American Indian and Alaska Native alone, not Hispanic | 0.1%±0.1 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 4.9%±0.3 pts | 3.8% | – |
| Some other race alone, not Hispanic | 0.6%±0.1 pts | 0.4% | – |
| Born outside the United States | 12.6%±0.4 pts | 6.3% | +3.1 pts |
| Speak a language other than English at home (age 5+) | 18.2%±0.4 pts | 10.3% | – |
| Civilian veterans (age 18+) | 5.5%±0.2 pts | 6.3% | – |
| With a disability | 13.9%±0.4 pts | 14.2% | – |
| No health insurance coverage | 8.8%±0.4 pts | 7.4% | −1.7 pts |
| High school graduate or higher (age 25+) | 88.1%±0.5 pts | 90.4% | – |
| Bachelor's degree or higher (age 25+) | 34.8%±0.6 pts | 29.5% | +3.9 pts |
| Graduate or professional degree (age 25+) | 12.7%±0.4 pts | 10.8% | – |
| Moved from another state in the past year | 1.9%±0.2 pts | 2.1% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Marion County earn?
Half of Marion County's 400,432 households earn less than $66,346 a year (±$943), against $71,957 in Indiana. In 2015-2019 the median was $59,462 in 2024 dollars, so it rose by $6,884 after inflation. 15.3% of residents live below the poverty line.
| Measure | Marion County | Indiana | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $66,346±$943 | $71,957 | +$6,884 |
| Mean household income | $90,675±$1,315 | $95,247 | – |
| Per capita income | $37,704±$500 | $38,351 | +$2,548 |
| People below the poverty line | 15.3%±0.6 pts | 12.3% | −2.5 pts |
| Children under 18 below the poverty line | 21.5%±1.4 pts | 16.0% | −5.0 pts |
| Households receiving SNAP | 12.5%±0.6 pts | 9.1% | – |
| Households with a broadband subscription | 91.8%±0.5 pts | 89.9% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Marion County?
Owners occupy 56.5% of Marion County's occupied homes and renters 43.5%. The median owner-occupied home is valued at $224,000 by its owner (±$2,242). The median renter pays $1,153 a month including utilities, and 41.7% of renters pay 35% or more of their income on rent.
| Measure | Marion County | Indiana | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $224,000±$2,242 | $218,200 | +$55,764 |
| Median gross rent | $1,153±$10 | $1,062 | +$59 |
| Renters paying 35% or more of income on rent | 41.7%±1.1 pts | 38.9% | no clear change |
| Median monthly owner costs, with a mortgage | $1,453±$14 | $1,404 | – |
| Owner-occupied homes | 56.5%±0.7 pts | 70.6% | +2.6 pts |
| Housing units | 441,040±138 | 2,976,568 | +17,694 |
| Homeowner vacancy rate | 1.2%±0.2 pts | 0.8% | – |
| Rental vacancy rate | 4.9%±0.5 pts | 5.6% | – |
| Single-family detached homes | 59.2%±0.6 pts | 72.6% | – |
| Mobile homes | 1.5%±0.2 pts | 4.4% | – |
| Built 2020 or later | 1.1%±0.2 pts | 1.7% | – |
| Built 1939 or earlier | 15.0%±0.3 pts | 16.0% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Marion County building?
Builders took permits for 1,342 new housing units across Marion County in 2025 (1,041 single-family), 1.4 per 1,000 residents.
Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Marion County get to work?
72.0% of Marion County's workers drive alone and 13.9% work from home. The average trip to work takes 24.5 minutes. The unemployment rate in 2020-2024 averaged 5.0%.
| Measure | Marion County | Indiana | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 68.7%±0.5 pts | 63.8% | – |
| Unemployment rate | 5.0%±0.3 pts | 4.3% | −1.3 pts |
| Drove alone to work | 72.0%±0.7 pts | 76.3% | – |
| Carpooled | 9.6%±0.5 pts | 9.1% | – |
| Public transportation | 1.3%±0.2 pts | 0.6% | – |
| Walked | 1.7%±0.2 pts | 1.9% | – |
| Worked from home | 13.9%±0.5 pts | 10.7% | +10.4 pts |
| Mean travel time to work | 24.5 min±0.3 | 24.1 min | +0.8 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What are Marion County's census tracts?
Marion County is divided into 253 census tracts. Among those with a reliable estimate, median household income runs from $22,813 (Tract 3416) to $200,500 (Tract 3101.13).
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does Marion County compare with Indiana's other counties?
| Measure | Rank |
|---|---|
| Population | 1st of 92 |
| Growth 2020-2025 | 40th of 92 |
| Residents per square mile | 1st of 92 |
| Median household income | 55th of 92 |
| Median home value | 20th of 92 |
| Median gross rent | 8th of 92 |
| Poverty rate | 14th of 92 |
| Bachelor's degree or higher | 8th of 92 |
| Median age | 88th of 92 |
Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Marion County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.