Gallatin County, Illinois
County seat: Shawneetown · Population 4,616 (2025) · 323 sq mi
Gallatin County is the 98th most populous of Illinois's 102 counties, with 4,616 people (2025 estimate). Its county seat is Shawneetown. 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 6 neighboring counties.
Gallatin County facts
- County seat
- Shawneetown
- Population (2025 estimate)
- 4,616 −6.6% since 2020
- Land area
- 323 sq mi 88th largest of 102
- Water area
- 5 sq mi
- Population density
- 14 per sq mi
- Established
- 1812
- Same name
- One of 3 Gallatin Counties in the US
- Named after
- Albert Gallatin Swiss and American politician, diplomat and scholar (1761-1849)
- Largest city
- Shawneetown 985
- Median household income
- $59,219
- Cities and towns
- 7
- ZIP codes
- 9
- Time zone
- Central
- FIPS code
- 17059
Cities and towns in Gallatin County
Gallatin County has 7 incorporated cities, towns and villages. Populations count the people living inside Gallatin County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Shawneetown (county seat) | City | 985 | |
| Ridgway | Village | 795 | |
| Equality | Village | 499 | |
| New Haven | Village | 375 | White County |
| Omaha | Village | 203 | |
| Old Shawneetown | Village | 101 | |
| Junction | Village | 52 |
ZIP codes in Gallatin County
9 ZIP codes reach into Gallatin County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 62867 also White County
- 62869 also White, Hamilton and Saline counties
- 62871 also White County
- 62930 also Saline and Hamilton counties
- 62931 also Hardin County
- 62934 also Saline County
- 62954
- 62979
- 62984
Population of Gallatin County, 2020–2025
Gallatin County shrank by 326 people (−6.6%) between April 2020 and July 2025: 252 more deaths than births and a net loss of 73 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 4,933 |
| 2021 | 4,896 |
| 2022 | 4,831 |
| 2023 | 4,698 |
| 2024 | 4,683 |
| 2025 | 4,616 |
Neighboring counties
- Saline County west · 22,772 people
- Union County, Kentucky southeast · 12,839 people
- White County north · 13,250 people
- Posey County, Indiana northeast · 24,988 people
- Hardin County south · 3,588 people
- Hamilton County northwest · 7,859 people
Printable Gallatin 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) (89 KB)
- PNG (2400 px) (87 KB)
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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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