10 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 26415 | Pennsboro | 3,450 |
| 26362 | Harrisville | 2,904 |
| 26337 | Cairo | 842 |
| 26346 | Ellenboro | 637 |
| 26161 | Petroleum | 490 |
| 26178 | Smithville | 272 |
| 26325 | Auburn | 271 |
| 26148 | Macfarlan | 233 |
| 26421 | Pullman | 175 |
| 26327 | Berea | 30 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 10 ZCTAs in Ritchie County, West Virginia (US Census).