11 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Beaver | 1 | 1,248 | 1,270 | -0.32% | 1,087 | 1 | Town |
| Beaver | 2 | 1,248 | 1,266 | -0.32% | 1,087 | 1 | Town |
| Forgan | 3 | 451 | 448 | 0.22% | 1,148 | 0 | Town |
| Forgan | 4 | 451 | 446 | 0.22% | 1,148 | 0 | Town |
| Turpin | 5 | 354 | 281 | -2.21% | 354 | 1 | CDP |
| Little Ponderosa | 6 | 336 | 318 | 7.01% | 449 | 1 | CDP |
| Baker | 7 | 121 | 129 | 7.08% | 122 | 1 | CDP |
| Gate | 8 | 56 | 59 | -1.75% | 222 | 0 | Town |
| Gate | 9 | 56 | 59 | -1.75% | 222 | 0 | Town |
| Knowles | 10 | 5 | 5 | 0% | 25 | 0 | Town |
| Knowles | 11 | 5 | 5 | 0% | 25 | 0 | Town |
Beaver is the largest city in Beaver County, with a population of 1,248.
Knowles is the smallest city in Beaver County, with a population of 5.
There are 11 cities in Beaver County, Oklahoma.