| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Lawrence | 1 | 96,743 | 94,936 | 0.39% | 2,799 | 35 | City |
| Eudora | 2 | 6,530 | 6,418 | 0.37% | 1,948 | 3 | City |
| Baldwin City | 3 | 4,977 | 4,820 | 0.63% | 1,752 | 3 | City |
Lawrence is the largest city in Douglas County, with a population of 96,743.
Baldwin City is the smallest city in Douglas County, with a population of 4,977.
There are 3 cities in Douglas County, Kansas.