13 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| East Wenatchee | 1 | 14,381 | 14,153 | 0.36% | 3,795 | 4 | City |
| East Wenatchee | 2 | 14,381 | 14,125 | 0.36% | 3,795 | 4 | City |
| Bridgeport | 3 | 2,294 | 2,130 | 1.46% | 2,140 | 1 | City |
| Bridgeport | 4 | 2,294 | 2,128 | 1.46% | 2,140 | 1 | City |
| Rock Island | 5 | 1,830 | 1,275 | 6.27% | 1,624 | 1 | City |
| Rock Island | 6 | 1,830 | 1,289 | 6.27% | 1,624 | 1 | City |
| Waterville | 7 | 1,152 | 1,133 | 0.35% | 1,332 | 1 | Town |
| Waterville | 8 | 1,152 | 1,130 | 0.35% | 1,332 | 1 | Town |
| Mansfield | 9 | 342 | 331 | 0.59% | 1,056 | 0 | Town |
| Mansfield | 10 | 342 | 330 | 0.59% | 1,056 | 0 | Town |
| Crescent Bar | 11 | 281 | 207 | 7.25% | 279 | 1 | CDP |
| Banks Lake South | 12 | 203 | 113 | 1% | 83 | 2 | CDP |
| Sunland Estates | 13 | 138 | 65 | 7.81% | 342 | 0 | CDP |
East Wenatchee is the largest city in Douglas County, with a population of 14,381.
Sunland Estates is the smallest city in Douglas County, with a population of 138.
There are 13 cities in Douglas County, Washington.