5 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Clarkston | 1 | 7,114 | 7,232 | -0.34% | 3,460 | 2 | City |
| Clarkston Heights-Vineland | 2 | 6,899 | 7,062 | 0.57% | 597 | 12 | CDP |
| West Clarkston-Highland | 3 | 6,285 | 5,791 | 1.11% | 2,237 | 3 | CDP |
| Asotin | 4 | 1,195 | 1,178 | 0.25% | 1,114 | 1 | City |
| Anatone | 5 | 11 | 11 | 10% | 92 | 0 | CDP |
Clarkston is the largest city in Asotin County, with a population of 7,114.
Anatone is the smallest city in Asotin County, with a population of 11.
There are 5 cities in Asotin County, Washington.