9 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Nowata | 1 | 3,610 | 3,520 | 0.5% | 1,060 | 3 | City |
| Nowata | 2 | 3,610 | 3,519 | 0.5% | 1,060 | 3 | City |
| Lenapah | 3 | 282 | 274 | 0.36% | 684 | 0 | Town |
| Lenapah | 4 | 282 | 274 | 0.36% | 684 | 0 | Town |
| Delaware | 5 | 276 | 266 | 0.73% | 701 | 0 | Town |
| Delaware | 6 | 276 | 266 | 0.73% | 701 | 0 | Town |
| Wann | 7 | 97 | 94 | 0% | 567 | 0 | Town |
| Wann | 8 | 97 | 94 | 0% | 567 | 0 | Town |
| Watova | 9 | 39 | 74 | 8.33% | 68 | 1 | CDP |
Nowata is the largest city in Nowata County, with a population of 3,610.
Watova is the smallest city in Nowata County, with a population of 39.
There are 9 cities in Nowata County, Oklahoma.