3 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Sweetwater | 1 | 10,071 | 10,605 | -1.05% | 910 | 11.07 | City |
| Roscoe | 2 | 1,192 | 1,262 | -1.16% | 370 | 3.22 | City |
| Blackwell | 3 | 248 | 257 | -0.8% | 420 | 0.59 | City |
Sweetwater is the largest city in Nolan County, with a population of 10,071.
Blackwell is the smallest city in Nolan County.
There are 3 cities in Nolan County, Texas.