11 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Lawrence | 1 | 97,057 | 94,931 | 0.44% | 2,834 | 34.25 | City |
| Eudora township | 2 | 7,906 | 7,727 | 0.56% | 162 | 48.95 | Township |
| Palmyra township | 3 | 7,886 | 7,612 | 0.6% | 97 | 81.45 | Township |
| Eudora | 4 | 6,503 | 6,410 | 0.29% | 2,149 | 3.03 | City |
| Baldwin City | 5 | 5,001 | 4,820 | 0.73% | 1,761 | 2.84 | City |
| Willow Springs township | 6 | 1,583 | 1,513 | 0.96% | 29 | 54.17 | Township |
| Kanwaka township | 7 | 1,499 | 1,433 | 0.87% | 36 | 41.97 | Township |
| Clinton township | 8 | 650 | 620 | 0.93% | 21 | 31.32 | Township |
| Grant township | 9 | 398 | 379 | 1.02% | 25 | 16.09 | Township |
| Lawrence township | 10 | 123 | 132 | -2.38% | 3 | 35.91 | Township |
| Lawrence township | 11 | 23 | 23 | 0% | 1 | 34.59 | Township |
Lawrence is the largest city in Douglas County, with a population of 97,057.
Lawrence township is the smallest city in Douglas County.
There are 11 cities in Douglas County, Kansas.