26 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 29464 | Mount Pleasant | 53,045 |
| 29466 | Mount Pleasant | 44,942 |
| 29414 | Charleston | 44,727 |
| 29456 | Ladson | 41,214 |
| 29412 | Charleston | 39,256 |
| 29407 | Charleston | 36,706 |
| 29406 | Charleston | 32,001 |
| 29455 | Johns Island | 27,576 |
| 29405 | North Charleston | 26,254 |
| 29418 | North Charleston | 26,052 |
| 29403 | Charleston | 22,533 |
| 29401 | Charleston | 9,339 |
| 29449 | Hollywood | 8,024 |
| 29470 | Ravenel | 5,639 |
| 29429 | Awendaw | 4,479 |
| 29451 | Isle Of Palms | 4,362 |
| 29438 | Edisto Island | 2,826 |
| 29487 | Wadmalaw Island | 2,703 |
| 29458 | McClellanville | 2,505 |
| 29404 | Charleston Afb | 2,334 |
| 29482 | Sullivans Island | 2,087 |
| 29409 | Charleston | 2,056 |
| 29426 | Adams Run | 1,697 |
| 29424 | Charleston | 1,243 |
| 29439 | Folly Beach | 1,125 |
| 29425 | Charleston | 0 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 26 ZCTAs in Charleston County, South Carolina (US Census).