ZIP CodesZIP codes in Dorchester County, South Carolina
Dorchester County, South Carolina has 10 ZIP codes in this list, from 29420 to 29485. They cover 8 places, among them Summerville, North Charleston, Dorchester and Grover.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 29420 | North Charleston | 10.0 | 32.934, -80.103 |
| 29437 | Dorchester | 84.1 | 33.125, -80.403 |
| 29447 | Grover | no area | 33.105, -80.595 |
| 29448 | Harleyville | 59.4 | 33.221, -80.450 |
| 29471 | Reevesville | 42.8 | 33.187, -80.667 |
| 29472 | Ridgeville | 190 | 33.108, -80.309 |
| 29477 | Saint George | 110 | 33.184, -80.573 |
| 29483 | Summerville | 53.3 | 33.028, -80.174 |
| 29484 | Summerville | no area | 33.002, -80.227 |
| 29485 | Summerville | 48.5 | 32.976, -80.183 |
The ZIP code areas of Dorchester County add up to about 598 square miles of land (1,549 sq km) as the Census Bureau draws them. The largest is 29472 (Ridgeville), with 190 square miles.
Places with more than one code here: Summerville (3 codes).
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: North Charleston, SC 29420.
- 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.