3 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Goldthwaite | 1 | 1,784 | 1,729 | 0.62% | 884 | 2.02 | City |
| Priddy | 2 | 139 | 154 | 6.92% | 35 | 4 | CDP |
| Mullin | 3 | 133 | 127 | 0.76% | 284 | 0.47 | Town |
Goldthwaite is the largest city in Mills County, with a population of 1,784.
Mullin is the smallest city in Mills County.
There are 3 cities in Mills County, Texas.