12 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Leroy | 1 | 1,098 | 1,019 | 1.1% | 92 | 12 | CDP |
| Chatom | 2 | 1,046 | 1,095 | -0.95% | 98 | 11 | Town |
| St. Stephens | 3 | 465 | 174 | -0.43% | 47 | 10 | CDP |
| Millry | 4 | 438 | 448 | -0.45% | 58 | 7 | Town |
| Vinegar Bend | 5 | 253 | 351 | 1.61% | 27 | 9 | CDP |
| McIntosh | 6 | 194 | 204 | -1.02% | 195 | 1 | Town |
| Hobson | 7 | 134 | 206 | 0.75% | 46 | 3 | CDP |
| Fruitdale | 8 | 105 | 228 | -4.55% | 23 | 4 | CDP |
| Tibbie | 9 | 87 | 39 | 6.1% | 50 | 2 | CDP |
| Deer Park | 10 | 57 | 101 | -13.64% | 18 | 3 | CDP |
| Calvert | 11 | 18 | 149 | -50% | 8 | 2 | CDP |
| Malcolm | 12 | 8 | 243 | -60% | 3 | 2 | CDP |
Leroy is the largest city in Washington County, with a population of 1,098.
Malcolm is the smallest city in Washington County, with a population of 8.
There are 12 cities in Washington County, Alabama.