Stark County, Illinois
County seat: Toulon · Population 5,319 (2025) · 288 sq mi
Stark County is the 95th most populous of Illinois's 102 counties, with 5,319 people (2025 estimate). Its county seat is Toulon. It is part of the North Central region, one of the 10 Illinois economic development regions (DCEO). The map shows its 4 cities and towns and the 5 neighboring counties.
Stark County facts
- County seat
- Toulon
- Population (2025 estimate)
- 5,319 −1.4% since 2020
- Land area
- 288 sq mi 92nd largest of 102
- Water area
- 0 sq mi
- Population density
- 19 per sq mi
- Established
- 1839
- Same name
- One of 3 Stark Counties in the US
- Named after
- John Stark American Revolutionary War general from New Hampshire
- Largest city
- Wyoming 1,287
- Median household income
- $62,878
- Cities and towns
- 4
- ZIP codes
- 10
- Time zone
- Central
- FIPS code
- 17175
Cities and towns in Stark County
Stark County has 4 incorporated cities, towns and villages. Populations count the people living inside Stark County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Wyoming | City | 1,287 | |
| Toulon (county seat) | City | 1,172 | |
| Bradford | Village | 666 | |
| La Fayette | Village | 157 |
ZIP codes in Stark County
10 ZIP codes reach into Stark County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 61345 also Bureau County
- 61421 also Bureau and Marshall counties
- 61426
- 61434 also Henry and Knox counties
- 61443 also Henry and Bureau counties
- 61449 also Knox County
- 61479 also Marshall County
- 61483
- 61491 also Marshall County
- 61559 also Peoria County
Population of Stark County, 2020–2025
Stark County shrank by 76 people (−1.4%) between April 2020 and July 2025: 92 more deaths than births and a net gain of 21 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 5,382 |
| 2021 | 5,286 |
| 2022 | 5,314 |
| 2023 | 5,262 |
| 2024 | 5,269 |
| 2025 | 5,319 |
Neighboring counties
- Peoria County south · 178,553 people
- Bureau County northeast · 32,510 people
- Henry County northwest · 48,095 people
- Knox County southwest · 47,767 people
- Marshall County east · 11,473 people
Printable Stark 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) (68 KB)
- PNG (2400 px) (51 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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