16 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Watonga | 1 | 2,600 | 2,693 | -0.65% | 690 | 4 | City |
| Watonga | 2 | 2,600 | 2,683 | -0.65% | 690 | 4 | City |
| Okeene | 3 | 1,045 | 1,083 | -0.67% | 462 | 2 | Town |
| Okeene | 4 | 1,045 | 1,078 | -0.67% | 462 | 2 | Town |
| Geary | 5 | 985 | 995 | -0.2% | 238 | 4 | City |
| Geary | 6 | 985 | 994 | -0.2% | 238 | 4 | City |
| Canton | 7 | 452 | 467 | -0.66% | 864 | 1 | Town |
| Canton | 8 | 452 | 466 | -0.66% | 864 | 1 | Town |
| Longdale | 9 | 182 | 183 | 0% | 689 | 0 | Town |
| Longdale | 10 | 182 | 182 | 0% | 689 | 0 | Town |
| Greenfield | 11 | 115 | 115 | 0% | 810 | 0 | Town |
| Greenfield | 12 | 115 | 115 | 0% | 810 | 0 | Town |
| Hitchcock | 13 | 97 | 100 | -1.02% | 647 | 0 | Town |
| Hitchcock | 14 | 97 | 100 | -1.02% | 647 | 0 | Town |
| Homestead | 15 | 40 | 25 | 8.11% | 53 | 1 | CDP |
| Eagle City | 16 | 20 | 16 | 5.26% | 30 | 1 | CDP |
Watonga is the largest city in Blaine County, with a population of 2,600.
Eagle City is the smallest city in Blaine County, with a population of 20.
There are 16 cities in Blaine County, Oklahoma.