Marion County, Illinois
Marion County, Illinois · ZIP 62801, 62807, 62838
- Census data · ACS 2019-2023
- 36,437 (2024 estimate)Population
- 15,465Households
- $60,839Median household income
- $100,100Median home value
- 30Towns with a page
- 13ZIP codes
Marion County in numbersOfficial sources, refreshed yearly
| Census | Population |
|---|---|
| 2000 | 41,691 |
| 2010 | 39,437 |
| 2020 | 37,729 |
As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.
Sources: Census 2000 Summary File 1: total population, county level, state 17, retrieved November 14, 2026; Census 2010 Summary File 1: total population, county level, state 17, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, county level, state 17, retrieved November 14, 2026.
Median household income $60,839 · Share of households by income, American Community Survey 5-year 2019-2023, table S1901.
Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, county level, state 17, retrieved November 14, 2026.
- Owner occupied
- 11,514 units
- Renter occupied
- 3,951 units
- Vacancy rate
- 11%
Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.
Source: American Community Survey 5-year data profile 2019–2023, county level, state 17, retrieved November 14, 2026.
11,370 employees in 863 establishments with payroll in 2023, all sectors; employers themselves are not named in the source. County Business Patterns counts are published with noise.
Source: County Business Patterns 2023: employment by sector, county level, state 17, retrieved November 14, 2026.
| Measure | Marion County | Illinois |
|---|---|---|
| Population | 37,294 | 12,692,653 |
| Median household income | $60,839 | $81,702 |
| Median age | 41.3 | 38.9 |
| Median home value | $100,100 | $250,500 |
| Bachelor’s degree or higher | 17.3% | 37.2% |
| Foreign-born residents | 1.5% | 14.4% |
| Owner-occupied homes | 74.5% | 66.8% |
| Mean commute to work | 20.4 minutes | 28.1 minutes |
Source: American Community Survey 5-year data profile 2019–2023, county level, state 17, retrieved November 14, 2026.
Townships, towns and villages in Marion County30 with a page · sort by any column
| Type | |||
|---|---|---|---|
| Centralia Township | Township | 13,839 | 35.1 sq mi |
| Centralia | City | 11,787 | 8.20 sq mi |
| Salem Township | Township | 8,773 | 35.4 sq mi |
| Salem | City | 7,016 | 6.99 sq mi |
| Sandoval Township | Township | 2,146 | 17.6 sq mi |
| Odin Township | Township | 1,526 | 18.0 sq mi |
| Raccoon Township | Township | 1,498 | 35.4 sq mi |
| Stevenson Township | Township | 1,141 | 36.7 sq mi |
| Sandoval | Village | 1,125 | 1.03 sq mi |
| Kinmundy Township | Township | 1,087 | 36.6 sq mi |
| Central City | Village | 1,067 | 0.56 sq mi |
| Iuka Township | Township | 987 | 36.0 sq mi |
| Tonti Township | Township | 985 | 35.5 sq mi |
| Patoka Township | Township | 908 | 34.9 sq mi |
| Odin | Village | 903 | 1.00 sq mi |
| Haines Township | Township | 842 | 36.1 sq mi |
| Alma Township | Township | 760 | 36.8 sq mi |
| Kinmundy | City | 711 | 1.20 sq mi |
| Junction City | Village | 523 | 0.68 sq mi |
| Patoka | Village | 508 | 1.11 sq mi |
| Iuka | Village | 490 | 0.73 sq mi |
| Romine Township | Township | 479 | 35.9 sq mi |
| Omega Township | Township | 430 | 35.4 sq mi |
| Carrigan Township | Township | 352 | 35.1 sq mi |
| Foster Township | Township | 348 | 35.6 sq mi |
| Meacham Township | Township | 336 | 36.5 sq mi |
| Alma | Village | 305 | 1.13 sq mi |
| Kell | Village | 170 | 1.00 sq mi |
| Vernon | Village | 100 | 0.88 sq mi |
| Walnut Hill | Village | 93 | 0.38 sq mi |
Populations: Census Population Estimates, Vintage 2024: subcounty totals, state 17 (2024). Land areas: Census Gazetteer 2025: counties. A dash means the figure is not in the cited file.
County officialsFrom public records
No county official is published yet. Names appear once a researcher drafts them from the county’s own site and a second person approves; office contacts only, never personal details.
Across Marion County
No job is posted in Marion County’s towns yet. Employers post from their business dashboard; public job banks are added once their terms are recorded.
No upcoming event is listed in Marion County's towns yet. Members and businesses add events from any town page.
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Neighboring counties
Neighboring counties
- Clay CountyPopulation 12,821 (2024 estimate)
- Clinton CountyPopulation 37,087 (2024 estimate)
- Fayette CountyPopulation 21,157 (2024 estimate)
- Jefferson CountyPopulation 36,107 (2024 estimate)
- Washington CountyPopulation 13,535 (2024 estimate)
- Wayne CountyPopulation 15,928 (2024 estimate)
Sources: Census county adjacency file 2024, retrieved November 14, 2026; Census Population Estimates, Vintage 2024: subcounty totals, state 17, retrieved November 14, 2026.