Founded in 1850, Presidio County is one of 254 counties in the state of Texas. Historically, Presidio County was formed from Santa Fe County. The city of Marfa is the county seat. With FIPS code of 377, Presidio County has a population of 6,140 and area of 3,856 square miles (9,987 km2).
List of all cities in Presidio County, TX alphabetically
| City/Town | Postal Code | Area Code |
| Marfa, TX | 79843 | 432 |
| Presidio, TX | 79845 | 432 |
| 79846 | 432 | |
| Redford, TX | 79846 | 432 |
| Shafter, TX | 79843 | 432 |
| Valentine, TX | 79854 | 432 |