Founded in 1891, Sterling County is one of 254 counties in the state of Texas. Historically, Sterling County was formed from Tom Green County. The city of Sterling City is the county seat. With FIPS code of 431, Sterling County has a population of 1,381 and area of 923 square miles (2,391 km2).
List of all cities in Sterling County, TX alphabetically
| City/Town | Postal Code | Area Code |
| Sterling City, TX | 76951 | 325 |