| Zip Code | City | Population ↓ |
|---|---|---|
| 29835 | McCormick | 6,149 |
| 29845 | Plum Branch | 1,155 |
| 29899 | McCormick | 860 |
| 29848 | Troy | 839 |
| 29840 | Mount Carmel | 379 |
| 29844 | Parksville | 112 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 6 ZCTAs in McCormick County, South Carolina (US Census).