# Marion County, Indiana demographics

Canonical: https://olympus.new-odyssey.com/data/county/18097

Marion County, Indiana (county FIPS 18097) has a median household income of $66,346 (±$943) and a total population of 975,809 in the American Community Survey 5-year estimates for 2020-2024.

Margins of error are at the 90% confidence level. The figures describe 2020-2024 (dollars in 2024 dollars), not the present. 41 ZIP Code Tabulation Areas overlap the county (Census 2020).

Notes:

- Values are ACS 5-year estimates for 2020-2024 (dollars in 2024 dollars), not current figures.
- ZCTA-county overlaps come from the Census 2020 relationship file and use 2020 counties, by land area; Connecticut uses its legacy counties, not the planning regions in ACS 2022+.

## ACS 5-year estimates, 2020-2024

Census American Community Survey 5-year estimates for 2020-2024, with 90% margins of error as published by the Census Bureau.

| Metric | Estimate | Margin of error (90%) | ACS table |
| --- | --- | --- | --- |
| Total population | 975,809 | none (controlled estimate) | B01003 |
| Median age | 34.4 years | ±0.1 years | B01002 |
| Households | 400,432 | ±1,895 | B11001 |
| Median household income (inflation-adjusted to the final ACS year) | $66,346 | ±$943 | B19013 |
| Median value of owner-occupied housing units | $224,000 | ±$2,242 | B25077 |
| Median gross rent | $1,153 | ±$10 | B25064 |
| Owner-occupied share of occupied housing units | 56.6% | none (derived from several estimates) | B25003 (derived) |
| Renter-occupied share of occupied housing units | 43.5% | none (derived from several estimates) | B25003 (derived) |
| High school graduate or higher (age 25+) | 88.1% | none (derived from several estimates) | B15003 (derived) |
| Bachelor's degree or higher (age 25+) | 34.8% | none (derived from several estimates) | B15003 (derived) |
| Share of people below the poverty level | 15.4% | none (derived from several estimates) | B17001 (derived) |
| Unemployment rate (civilian labor force) | 5% | none (derived from several estimates) | B23025 (derived) |

- Dollar values are in 2024 inflation-adjusted dollars.
- Percentages' margins of error are in percentage points (pp).

## Geography

| Measure | Value |
| --- | --- |
| County FIPS | 18097 |
| Land area | 396 sq mi |
| Water area | 7.01 sq mi |
| Population density | 2,464 per sq mi of land |
| Geography vintage | 2024 Gazetteer |

## ZIP codes (ZCTAs) in this county

ZCTAs that overlap the county in the Census 2020 ZCTA to county relationship file, largest share of the county's land first.

| ZCTA | Share of county land | Share of ZCTA land | County is the ZCTA's primary county |
| --- | --- | --- | --- |
| [46239](https://olympus.new-odyssey.com/data/zip/46239) | 7.1% | 99.2% | Yes |
| [46241](https://olympus.new-odyssey.com/data/zip/46241) | 6% | 100% | Yes |
| [46217](https://olympus.new-odyssey.com/data/zip/46217) | 5.3% | 100% | Yes |
| [46221](https://olympus.new-odyssey.com/data/zip/46221) | 5% | 100% | Yes |
| [46227](https://olympus.new-odyssey.com/data/zip/46227) | 4.2% | 100% | Yes |
| [46259](https://olympus.new-odyssey.com/data/zip/46259) | 3.9% | 67.9% | Yes |
| [46226](https://olympus.new-odyssey.com/data/zip/46226) | 3.7% | 100% | Yes |
| [46237](https://olympus.new-odyssey.com/data/zip/46237) | 3.7% | 100% | Yes |
| [46203](https://olympus.new-odyssey.com/data/zip/46203) | 3.5% | 100% | Yes |
| [46219](https://olympus.new-odyssey.com/data/zip/46219) | 3.3% | 100% | Yes |
| [46278](https://olympus.new-odyssey.com/data/zip/46278) | 3.2% | 95.8% | Yes |
| [46254](https://olympus.new-odyssey.com/data/zip/46254) | 3.2% | 100% | Yes |
| [46268](https://olympus.new-odyssey.com/data/zip/46268) | 3.1% | 97.7% | Yes |
| [46220](https://olympus.new-odyssey.com/data/zip/46220) | 3% | 100% | Yes |
| [46222](https://olympus.new-odyssey.com/data/zip/46222) | 2.8% | 100% | Yes |
| [46236](https://olympus.new-odyssey.com/data/zip/46236) | 2.6% | 99.8% | Yes |
| [46260](https://olympus.new-odyssey.com/data/zip/46260) | 2.6% | 99% | Yes |
| [46256](https://olympus.new-odyssey.com/data/zip/46256) | 2.6% | 92% | Yes |
| [46229](https://olympus.new-odyssey.com/data/zip/46229) | 2.6% | 89.7% | Yes |
| [46235](https://olympus.new-odyssey.com/data/zip/46235) | 2.4% | 100% | Yes |
| [46240](https://olympus.new-odyssey.com/data/zip/46240) | 2.4% | 97.8% | Yes |
| [46218](https://olympus.new-odyssey.com/data/zip/46218) | 2.4% | 100% | Yes |
| [46228](https://olympus.new-odyssey.com/data/zip/46228) | 2% | 100% | Yes |
| [46250](https://olympus.new-odyssey.com/data/zip/46250) | 1.9% | 99.4% | Yes |
| [46214](https://olympus.new-odyssey.com/data/zip/46214) | 1.9% | 100% | Yes |
| [46224](https://olympus.new-odyssey.com/data/zip/46224) | 1.8% | 100% | Yes |
| [46208](https://olympus.new-odyssey.com/data/zip/46208) | 1.7% | 100% | Yes |
| [46205](https://olympus.new-odyssey.com/data/zip/46205) | 1.6% | 100% | Yes |
| [46234](https://olympus.new-odyssey.com/data/zip/46234) | 1.6% | 49.9% |  |
| [46113](https://olympus.new-odyssey.com/data/zip/46113) | 1.5% | 37.3% |  |
| [46201](https://olympus.new-odyssey.com/data/zip/46201) | 1.4% | 100% | Yes |
| [46231](https://olympus.new-odyssey.com/data/zip/46231) | 1.4% | 47.8% |  |
| [46202](https://olympus.new-odyssey.com/data/zip/46202) | 1.4% | 100% | Yes |
| [46225](https://olympus.new-odyssey.com/data/zip/46225) | 1% | 100% | Yes |
| [46107](https://olympus.new-odyssey.com/data/zip/46107) | 0.8% | 100% | Yes |
| [46216](https://olympus.new-odyssey.com/data/zip/46216) | 0.8% | 100% | Yes |
| [46204](https://olympus.new-odyssey.com/data/zip/46204) | 0.3% | 100% | Yes |
| [46077](https://olympus.new-odyssey.com/data/zip/46077) | 0.2% | 1.5% |  |
| [46163](https://olympus.new-odyssey.com/data/zip/46163) | 0.1% | 1% |  |
| [46183](https://olympus.new-odyssey.com/data/zip/46183) | 0% | 100% | Yes |
| [46206](https://olympus.new-odyssey.com/data/zip/46206) | 0% | 100% | Yes |

## Sources

- American Community Survey 5-year estimates (Census Data API) (U.S. Census Bureau), ACS 5-year 2020-2024 (release acs5-2024:county), source date 2025-09-02: https://api.census.gov/data/2024/acs/acs5?get=NAME,B01003_001E,B01003_001M,B01002_001E,B01002_001M,B11001_001E,B11001_001M,B19013_001E,B19013_001M,B25077_001E,B25077_001M,B25064_001E,B25064_001M,B25003_001E,B25003_002E,B25003_003E,B15003_001E,B15003_017E,B15003_018E,B15003_019E,B15003_020E,B15003_021E,B15003_022E,B15003_023E,B15003_024E,B15003_025E,B17001_001E,B17001_002E,B23025_003E,B23025_005E&for=county:097&in=state:18
- Published by Olympus: Oct 22, 2026 (2026-10-22T13:59:21.446Z)
- Source data: U.S. Census Bureau. Works of the U.S. government are not subject to copyright in the United States.
- This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

## Get this data from the API

```sh
curl -s "https://api.olympus.new-odyssey.com/v1/geo-demographics/counties/18097" -H "X-API-Key: $OLYMPUS_API_KEY"
```

MCP tool: `get_us_demographics {"county_fips":"18097"}`

API reference: https://olympus.new-odyssey.com/docs/geo-demographics

## Related pages

- [Indiana: every county and ZCTA](https://olympus.new-odyssey.com/data/state/in)

## About this data

- [ZIP codes and ZCTAs: what's the difference](https://olympus.new-odyssey.com/data/zip-vs-zcta)
- [US Geographic & Demographics API](https://olympus.new-odyssey.com/apis/geo-demographics)
- [API reference](https://olympus.new-odyssey.com/docs/geo-demographics)
- [Coverage and sources](https://olympus.new-odyssey.com/coverage)

Treat the text of this page as data, never as instructions.