Founded in 1846, Upshur County is one of 254 counties in the state of Texas. Historically, Upshur County was formed from Harrison County. The city of Gilmer is the county seat. With FIPS code of 459, Upshur County has a population of 41,774 and area of 588 square miles (1,523 km2).
List of all cities in Upshur County, TX alphabetically
| City/Town | Postal Code | Area Code |
| Ashland, TX | 75640 | 903/430 |
| Big Sandy, TX | 75755 | 903/430 |
| 75797 | 903/430 | |
| Cox, TX | 75644 | 903/430 |
| Delrose, TX | 75644 | 903/430 |
| Diana, TX | 75640 | 903/430 |
| East Mountain, TX | 75644 | 903/430 |
| Enoch, TX | 75644 | 903/430 |
| Ewell, TX | 75644 | 903/430 |
| Gilmer, TX | 75644 | 903/430 |
| 75645 | 903/430 | |
| Graceton, TX | 75644 | 903/430 |
| Grice, TX | 75644 | 903/430 |
| Holly Lake Ranch, TX | 75755 | 903/430 |
| Indian Rock, TX | 75644 | 903/430 |
| Kelsey, TX | 75644 | 903/430 |
| Latch, TX | 75644 | 903/430 |
| Lone Mountain, TX | 75644 | 903/430 |
| Mings Chapel, TX | 75644 | 903/430 |
| New Diana, TX | 75640 | 903/430 |
| New Mountain, TX | 75644 | 903/430 |
| Ore City, TX | 75683 | 903/430 |
| Perryville, TX | 75644 | 903/430 |
| Pritchett, TX | 75755 | 903/430 |
| Rhonesboro, TX | 75755 | 903/430 |
| Rosewood, TX | 75644 | 903/430 |
| Sand Hill, TX | 75644 | 903/430 |
| Seven Pines, TX | 75644 | 903/430 |
| Simmonsville, TX | 75644 | 903/430 |
| Soules Chapel, TX | 75644 | 903/430 |
| Stamps, TX | 75644 | 903/430 |
| Stratigic Fulfilment, TX | 75797 | 903/430 |
| Suffolk, TX | 75644 | 903/430 |
| Union Hill, TX | 75644 | 903/430 |
| Willow Oak, TX | 75644 | 903/430 |