Saline County, Illinois
County seat: Harrisburg · Population 22,772 (2025) · 380 sq mi
Saline County is the 52nd most populous of Illinois's 102 counties, with 22,772 people (2025 estimate). Its county seat is Harrisburg. It is part of the Southern region, one of the 10 Illinois economic development regions (DCEO). The map shows its 7 cities and towns and the 7 neighboring counties.
Saline County facts
- County seat
- Harrisburg
- Population (2025 estimate)
- 22,772 −4.4% since 2020
- Land area
- 380 sq mi 77th largest of 102
- Water area
- 7 sq mi
- Population density
- 60 per sq mi
- Established
- 1847
- Same name
- One of 5 Saline Counties in the US
- Named after
- Saline River river in Illinois and Kentucky, United States
- Largest city
- Harrisburg 7,922
- Median household income
- $53,117
- Cities and towns
- 7
- ZIP codes
- 11
- Time zone
- Central
- FIPS code
- 17165
Cities and towns in Saline County
Saline County has 7 incorporated cities, towns and villages. Populations count the people living inside Saline County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Harrisburg (county seat) | City | 7,922 | |
| Eldorado | City | 3,579 | |
| Carrier Mills | Village | 1,595 | |
| Galatia | Village | 785 | |
| Raleigh | Village | 276 | |
| Stonefort | Village | 101 | Williamson County |
| Muddy | Village | 55 |
ZIP codes in Saline County
11 ZIP codes reach into Saline County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 62869 also White, Hamilton and Gallatin counties
- 62890 also Franklin, Williamson and Hamilton counties
- 62917 also Williamson County
- 62930 also Gallatin and Hamilton counties
- 62934 also Gallatin County
- 62935 also Hamilton and Williamson counties
- 62946 also Pope County
- 62947 also Pope and Hardin counties
- 62965
- 62977
- 62987 also Pope and Williamson counties
Population of Saline County, 2020–2025
Saline County shrank by 1,049 people (−4.4%) between April 2020 and July 2025: 782 more deaths than births and a net loss of 256 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 23,741 |
| 2021 | 23,379 |
| 2022 | 23,148 |
| 2023 | 22,980 |
| 2024 | 22,830 |
| 2025 | 22,772 |
Neighboring counties
- Gallatin County east · 4,616 people
- Williamson County west · 67,225 people
- Hamilton County north · 7,859 people
- Pope County south · 3,672 people
- Franklin County northwest · 36,916 people
- Hardin County southeast · 3,588 people
- Johnson County southwest · 13,363 people
Printable Saline 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) (86 KB)
- PNG (2400 px) (63 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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