18 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 29223 | Columbia | 53,074 |
| 29229 | Columbia | 51,861 |
| 29203 | Columbia | 40,653 |
| 29210 | Columbia | 39,962 |
| 29063 | Irmo | 38,201 |
| 29209 | Columbia | 38,041 |
| 29016 | Blythewood | 30,454 |
| 29201 | Columbia | 24,605 |
| 29205 | Columbia | 22,223 |
| 29206 | Columbia | 19,759 |
| 29204 | Columbia | 18,159 |
| 29061 | Hopkins | 12,538 |
| 29207 | Columbia | 8,012 |
| 29044 | Eastover | 4,799 |
| 29208 | Columbia | 2,445 |
| 29052 | Gadsden | 2,199 |
| 29225 | Columbia | 443 |
| 29177 | White Rock | 177 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 18 ZCTAs in Richland County, South Carolina (US Census).