10 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| New Cordell | 1 | 2,732 | 2,768 | -0.22% | 1,215 | 2 | City |
| Burns Flat | 2 | 1,901 | 1,946 | -0.37% | 2,195 | 1 | Town |
| Sentinel | 3 | 751 | 762 | -0.27% | 1,207 | 1 | Town |
| Corn | 4 | 586 | 595 | -0.17% | 1,679 | 0 | Town |
| Canute | 5 | 491 | 485 | 0.2% | 778 | 1 | Town |
| Dill City | 6 | 414 | 416 | 0% | 716 | 1 | Town |
| Bessie | 7 | 183 | 182 | 0% | 353 | 1 | Town |
| Rocky | 8 | 126 | 128 | 0% | 600 | 0 | Town |
| Colony | 9 | 108 | 110 | 0% | 117 | 1 | Town |
| Foss | 10 | 103 | 102 | 0% | 140 | 1 | Town |
New Cordell is the largest city in Washita County, with a population of 2,732.
Foss is the smallest city in Washita County, with a population of 103.
There are 10 cities in Washita County, Oklahoma.