10 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| New Cordell | 1 | 2,738 | 2,768 | -0.22% | 1,217 | 2 | City |
| Burns Flat | 2 | 1,908 | 1,946 | -0.42% | 2,203 | 1 | Town |
| Sentinel | 3 | 753 | 762 | -0.26% | 1,211 | 1 | Town |
| Corn | 4 | 587 | 595 | -0.34% | 1,682 | 0 | Town |
| Canute | 5 | 490 | 485 | 0.2% | 777 | 1 | Town |
| Dill City | 6 | 414 | 416 | -0.24% | 716 | 1 | Town |
| Bessie | 7 | 183 | 182 | 0% | 353 | 1 | Town |
| Rocky | 8 | 126 | 128 | -0.79% | 600 | 0 | Town |
| Colony | 9 | 108 | 110 | -0.92% | 117 | 1 | Town |
| Foss | 10 | 103 | 102 | 0% | 140 | 1 | Town |
New Cordell is the largest city in Washita County, with a population of 2,738.
Foss is the smallest city in Washita County, with a population of 103.
There are 10 cities in Washita County, Oklahoma.