Monroe County, Illinois
Monroe County, Illinois · ZIP 62236, 62244, 62248
- Census data · ACS 2019-2023
- 34,969 (2024 estimate)Population
- 13,830Households
- $101,635Median household income
- $265,600Median home value
- 6Towns with a page
- 10ZIP codes
Monroe County in numbersOfficial sources, refreshed yearly
| Census | Population |
|---|---|
| 2000 | 27,619 |
| 2010 | 32,957 |
| 2020 | 34,962 |
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 $101,635 · 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
- 11,589 units
- Renter occupied
- 2,241 units
- Vacancy rate
- 5.7%
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.
8,455 employees in 875 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 | Monroe County | Illinois |
|---|---|---|
| Population | 34,969 | 12,692,653 |
| Median household income | $101,635 | $81,702 |
| Median age | 42.5 | 38.9 |
| Median home value | $265,600 | $250,500 |
| Bachelor’s degree or higher | 38.2% | 37.2% |
| Foreign-born residents | 1.1% | 14.4% |
| Owner-occupied homes | 83.8% | 66.8% |
| Mean commute to work | 28.3 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 Monroe County6 with a page · sort by any column
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 Monroe County
No job is posted in Monroe 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 Monroe County's towns yet. Members and businesses add events from any town page.
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Neighboring counties
Neighboring counties
- Jefferson CountyPopulation 231,888 (2024 estimate)
- Randolph CountyPopulation 29,903 (2024 estimate)
- St. Clair CountyPopulation 251,149 (2024 estimate)
- Ste. Genevieve CountyPopulation 18,546 (2024 estimate)
- St. Louis CountyPopulation 992,929 (2024 estimate)
Sources: Census county adjacency file 2024, retrieved November 14, 2026; Census Population Estimates, Vintage 2024: subcounty totals, state 29, retrieved November 14, 2026; Census Population Estimates, Vintage 2024: subcounty totals, state 17, retrieved November 14, 2026.