5 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Stephenville | 1 | 22,502 | 21,112 | 1.25% | 1,895 | 11.87 | City |
| Dublin | 2 | 3,458 | 3,368 | 0.52% | 964 | 3.59 | City |
| Huckabay | 3 | 338 | 283 | 7.3% | 101 | 3.35 | CDP |
| Lingleville | 4 | 197 | 177 | 7.07% | 194 | 1.02 | CDP |
| Bluff Dale | 5 | 139 | 95 | 6.92% | 441 | 0.32 | CDP |
Stephenville is the largest city in Erath County, with a population of 22,502.
Bluff Dale is the smallest city in Erath County.
There are 5 cities in Erath County, Texas.