Founded in 1903, Reagan County is one of 254 counties in the state of Texas. Historically, Reagan County was formed from Tom Green County. The city of Big Lake is the county seat. With FIPS code of 383, Reagan County has a population of 3,253 and area of 1,175 square miles (3,043 km2).
List of all cities in Reagan County, TX alphabetically
| City/Town | Postal Code | Area Code |
| Best, TX | 76932 | 325 |
| Big Lake, TX | 76932 | 325 |
| Texon, TX | 76932 | 325 |