Greene County, Illinois
County seat: Carrollton · Population 11,313 (2025) · 543 sq mi
Greene County is the 85th most populous of Illinois's 102 counties, with 11,313 people (2025 estimate). Its county seat is Carrollton. It is part of the Central region, one of the 10 Illinois economic development regions (DCEO). The map shows its 9 cities and towns and the 6 neighboring counties.
Greene County facts
- County seat
- Carrollton
- Population (2025 estimate)
- 11,313 −5.5% since 2020
- Land area
- 543 sq mi 46th largest of 102
- Water area
- 3 sq mi
- Population density
- 21 per sq mi
- Established
- 1821
- Same name
- One of 14 Greene Counties in the US
- Named after
- Nathanael Greene American general in the American Revolutionary War (1742-1786)
- Largest city
- Carrollton 2,349
- Median household income
- $62,192
- Cities and towns
- 9
- ZIP codes
- 13
- Time zone
- Central
- FIPS code
- 17061
Cities and towns in Greene County
Greene County has 9 incorporated cities, towns and villages. Populations count the people living inside Greene County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Carrollton (county seat) | City | 2,349 | |
| White Hall | City | 2,159 | |
| Roodhouse | City | 1,484 | |
| Greenfield | City | 997 | |
| Kane | Village | 274 | |
| Rockbridge | Village | 170 | |
| Eldred | Village | 141 | |
| Hillview | Village | 91 | |
| Wilmington | Village | 86 |
ZIP codes in Greene County
13 ZIP codes reach into Greene County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 62016
- 62027
- 62044 also Macoupin County
- 62050
- 62052 also Jersey County
- 62054 also Jersey County
- 62063 also Jersey and Macoupin counties
- 62078
- 62081
- 62082 also Scott and Morgan counties
- 62092
- 62098
- 62630 also Macoupin County
Population of Greene County, 2020–2025
Greene County shrank by 662 people (−5.5%) between April 2020 and July 2025: 398 more deaths than births and a net loss of 265 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 11,924 |
| 2021 | 11,843 |
| 2022 | 11,636 |
| 2023 | 11,567 |
| 2024 | 11,393 |
| 2025 | 11,313 |
Neighboring counties
- Jersey County south · 21,160 people
- Calhoun County southwest · 4,300 people
- Macoupin County east · 43,748 people
- Scott County north · 4,866 people
- Pike County northwest · 14,231 people
- Morgan County north · 32,515 people
Printable Greene County map
The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.
- PDF (Letter) (88 KB)
- PNG (2400 px) (77 KB)
Paste this code to embed the map on your site:
Sources
- Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files (1:500,000).
- Population: Census Bureau county and city estimates, Vintage 2025. CDP populations: American Community Survey 2020–2024.
- Places and ZIP codes: Census Bureau 2026 Gazetteer and 2020 ZIP Code Tabulation Area relationship files.
- County seat, founding year and name origin: Wikidata (CC0), checked against state sources.
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