Founded in 1859, Douglas County is one of 102 counties in the state of Illinois. Historically, Douglas County was formed from Coles County. The city of Tuscola is the county seat. With FIPS code of 41, Douglas County has a population of 19,722 and area of 416 square miles (1,077 km2).
List of all cities in Douglas County, IL alphabetically
| City/Town | Postal Code | Area Code |
| Arcola, IL | 61910 | 217 |
| Arthur, IL | 61911 | 217 |
| Atwood, IL | 61913 | 217 |
| Camargo, IL | 61919 | 217 |
| Chesterville, IL | 61911 | 217 |
| Garrett, IL | 61913 | 217 |
| Hindsboro, IL | 61930 | 217 |
| Murdock, IL | 61941 | 217 |
| Newman, IL | 61942 | 217 |
| Tuscola, IL | 61953 | 217 |
| Villa Grove, IL | 61956 | 217 |