ZIP CodesZIP codes in Upshur County, Texas
Upshur County, Texas has 6 ZIP codes in this list, from 75640 to 75797. They cover 4 places, among them Gilmer, Big Sandy, Diana and Ore City.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 75640 | Diana | 86.9 | 32.770, -94.703 |
| 75644 | Gilmer | 187 | 32.725, -94.971 |
| 75645 | Gilmer | 145 | 32.604, -94.849 |
| 75683 | Ore City | 60.1 | 32.786, -94.751 |
| 75755 | Big Sandy | 101 | 32.617, -95.088 |
| 75797 | Big Sandy | no area | 32.577, -95.131 |
The ZIP code areas of Upshur County add up to about 579 square miles of land (1,501 sq km) as the Census Bureau draws them. The largest is 75644 (Gilmer), with 187 square miles.
Places with more than one code here: Gilmer (2 codes), Big Sandy (2 codes).
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Diana, TX 75640.
- Tap a ZIP code to open it in the look-up, with a copy button for the address line.
- A code can cross a county line, and one town can have several codes. The table shows the main place of each code.
- "No area" means the Census Bureau draws no area for that code. Such codes are usually for post office boxes or a single building.
Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.