South Carolina ZIP codes
South Carolina holds 534 ZIP codes between 29001 and 29945. The tables rank the places and counties with the most codes; the guide below decodes the numbering.
Places with the most ZIP codes in South Carolina
| Place | ZIP codes |
|---|---|
| Columbia | 34 |
| Greenville | 17 |
| Charleston | 16 |
| Spartanburg | 8 |
| Myrtle Beach | 7 |
| Aiken | 6 |
| Anderson | 6 |
| Beaufort | 6 |
| Florence | 6 |
| North Charleston | 5 |
| Rock Hill | 5 |
| Hilton Head Island | 4 |
| Summerville | 4 |
| Greenwood | 4 |
| Fort Mill | 4 |
| West Columbia | 4 |
| Orangeburg | 4 |
| Clemson | 4 |
| Sumter | 4 |
| North Augusta | 3 |
South Carolina counties by ZIP count
| County | ZIP codes |
|---|---|
| Richland | 40 |
| Spartanburg | 38 |
| Charleston | 34 |
| Greenville | 32 |
| Aiken | 23 |
| Horry | 20 |
| Beaufort | 19 |
| Orangeburg | 18 |
| Lexington | 17 |
| Anderson | 16 |
Reading a South Carolina ZIP code
South Carolina holds 534 ZIP codes between 29001 and 29945, spread over 46 counties. Columbia leads the state with 34 codes, ahead of Greenville with 17. Every code here opens with the digit 2: that opening number is the national postal region South Carolina belongs to, the next two digits name the sectional center that sorts the mail, and the final two point to the local office. A ZIP+4 suffix narrows delivery to a block face. Boundaries follow carrier routes rather than city limits, which is why Columbia spreads across 34 codes while some rural codes cross county lines.
Source: GeoNames postal dataset (CC BY 4.0), snapshot of 2026-07-09. Counts cover standard delivery ZIPs listed for South Carolina; unique and PO box codes may add to these totals.
Last updated: · Methodology and sources