ZIP CodesZIP codes in Union County, South Carolina
Union County, South Carolina has 6 ZIP codes in this list, from 29031 to 29395. They cover 5 places, among them Jonesville, Carlisle, Buffalo and Lockhart.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 29031 | Carlisle | 129 | 34.567, -81.481 |
| 29321 | Buffalo | 39.3 | 34.725, -81.683 |
| 29353 | Jonesville | 91.5 | 34.812, -81.643 |
| 29364 | Lockhart | 0.8 | 34.786, -81.462 |
| 29379 | Union | 243 | 34.727, -81.620 |
| 29395 | Jonesville | no area | 34.847, -81.723 |
The ZIP code areas of Union County add up to about 503 square miles of land (1,304 sq km) as the Census Bureau draws them. The largest is 29379 (Union), with 243 square miles.
Places with more than one code here: Jonesville (2 codes).
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Carlisle, SC 29031.
- 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.