Founded in 1839, Stark County is one of 102 counties in the state of Illinois. Historically, Stark County was formed from Knox and Putnam County. The city of Toulon is the county seat. With FIPS code of 175, Stark County has a population of 5,294 and area of 288 square miles (746 km2).
List of all cities in Stark County, IL alphabetically
| City/Town | Postal Code | Area Code |
| Bradford, IL | 61421 | 309 |
| Broadmoor, IL | 61421 | 309 |
| Castleton, IL | 61426 | 309 |
| Elmira, IL | 61483 | 309 |
| Goshen, IL | 61483 | 309 |
| La Fayette, IL | 61449 | 309 |
| Lombardville, IL | 61421 | 309 |
| Milo, IL | 61421 | 309 |
| Modena, IL | 61491 | 309 |
| Osceola, IL | 61421 | 309 |
| Saxton, IL | 61483 | 309 |
| Speer, IL | 61479 | 309 |
| Toulon, IL | 61483 | 309 |
| West Jersey, IL | 61483 | 309 |
| Wyoming, IL | 61491 | 309 |