Founded in 1855, Douglas County is one of 105 counties in the state of Kansas. Historically, Douglas County was one of the original 36 counties. The city of Lawrence is the county seat. With FIPS code of 45, Douglas County has a population of 119,363 and area of 457 square miles (1,184 km2).
List of all cities in Douglas County, KS alphabetically
| City/Town | Postal Code | Area Code |
| Baldwin, KS | 66006 | 785 |
| Eudora, KS | 66025 | 785 |
| Laurence, KS | 66044 | 785 |
| 66045 | 785 | |
| 66046 | 785 | |
| 66047 | 785 | |
| 66049 | 785 | |
| 66044 | 785 | |
| 66045 | 785 | |
| 66046 | 785 | |
| 66047 | 785 | |
| 66049 | 785 | |
| Lwrnce, KS | 66047 | 785 |
| University of Kansas, KS | 66045 | 785 |