Carroll County, Illinois
Carroll County, Illinois · ZIP 61014, 61046, 61051
- Census data · ACS 2019-2023
- 15,444 (2024 estimate)Population
- 6,478Households
- $60,871Median household income
- $113,500Median home value
- 20Towns with a page
- 7ZIP codes
Carroll County in numbersOfficial sources, refreshed yearly
| Census | Population |
|---|---|
| 2000 | 16,674 |
| 2010 | 15,387 |
| 2020 | 15,702 |
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 $60,871 · 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
- 5,037 units
- Renter occupied
- 1,441 units
- Vacancy rate
- 20.9%
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.
3,011 employees in 363 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 | Carroll County | Illinois |
|---|---|---|
| Population | 15,621 | 12,692,653 |
| Median household income | $60,871 | $81,702 |
| Median age | 44.9 | 38.9 |
| Median home value | $113,500 | $250,500 |
| Bachelor’s degree or higher | 18.2% | 37.2% |
| Foreign-born residents | 1.5% | 14.4% |
| Owner-occupied homes | 77.8% | 66.8% |
| Mean commute to work | 22.2 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 Carroll County20 with a page · sort by any column
| Type | |||
|---|---|---|---|
| Savanna Township | Township | 3,340 | 13.4 sq mi |
| York Township | Township | 2,747 | 47.5 sq mi |
| Savanna | City | 2,713 | 2.62 sq mi |
| Rock Creek-Lima Township | Township | 1,937 | 54.0 sq mi |
| Mount Carroll Township | Township | 1,910 | 37.7 sq mi |
| Thomson | Village | 1,595 | 2.22 sq mi |
| Cherry Grove-Shannon Township | Township | 1,575 | 53.6 sq mi |
| Lanark | City | 1,463 | 1.12 sq mi |
| Mount Carroll | City | 1,433 | 2.00 sq mi |
| Wysox Township | Township | 1,301 | 38.1 sq mi |
| Milledgeville | Village | 992 | 0.69 sq mi |
| Shannon | Village | 841 | 0.48 sq mi |
| Freedom Township | Township | 773 | 35.8 sq mi |
| Lake Carroll | Census designated place | 763 | 13.5 sq mi |
| Fairhaven Township | Township | 755 | 38.2 sq mi |
| Chadwick | Village | 476 | 0.31 sq mi |
| Salem Township | Township | 337 | 35.4 sq mi |
| Washington Township | Township | 313 | 35.6 sq mi |
| Woodland Township | Township | 270 | 36.6 sq mi |
| Elkhorn Grove Township | Township | 186 | 19.5 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 Carroll County
No job is posted in Carroll County’s towns yet. Employers post from their business dashboard; public job banks are added once their terms are recorded.
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Neighboring counties
Neighboring counties
- Clinton CountyPopulation 46,015 (2024 estimate)
- Jackson CountyPopulation 19,390 (2024 estimate)
- Jo Daviess CountyPopulation 21,528 (2024 estimate)
- Ogle CountyPopulation 51,345 (2024 estimate)
- Stephenson CountyPopulation 43,088 (2024 estimate)
- Whiteside CountyPopulation 54,657 (2024 estimate)
Sources: Census county adjacency file 2024, retrieved November 14, 2026; Census Population Estimates, Vintage 2024: subcounty totals, state 19, retrieved November 14, 2026; Census Population Estimates, Vintage 2024: subcounty totals, state 17, retrieved November 14, 2026.