14 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 26554 | Fairmont | 42,118 |
| 26582 | Mannington | 3,743 |
| 26588 | Rivesville | 2,635 |
| 26571 | Farmington | 1,788 |
| 26559 | Barrackville | 1,619 |
| 26591 | Worthington | 1,568 |
| 26585 | Metz | 977 |
| 26576 | Idamay | 634 |
| 26574 | Grant Town | 506 |
| 26563 | Carolina | 261 |
| 26560 | Baxter | 153 |
| 26572 | Four States | 114 |
| 26587 | Rachel | 98 |
| 26586 | Montana Mines | 58 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 14 ZCTAs in Marion County, West Virginia (US Census).