Founded in 1856, Erath County is one of 254 counties in the state of Texas. Historically, Erath County was formed from Bosque County and Coryell County. The city of Stephenville is the county seat. With FIPS code of 143, Erath County has a population of 43,378 and area of 1,086 square miles (2,813 km2).
List of all cities in Erath County, TX alphabetically
| City/Town | Postal Code | Area Code |
| Bluff Dale, TX | 76433 | 254 |
| Dublin, TX | 76446 | 254 |
| Lingleville, TX | 76401 | 254 |
| 76446 | 254 | |
| 76461 | 254 | |
| Morgan Mill, TX | 76465 | 254 |
| Stephenville, TX | 76401 | 254 |
| 76402 | 254 | |
| Tarleton State University, TX | 76402 | 254 |