Founded in 1858, Clay County is one of 55 counties in the state of West Virginia. Historically, Clay County was formed from Braxton and Nicholas counties. The city of Clay is the county seat. With FIPS code of 15, Clay County has a population of 7,892 and area of 342 square miles (886 km2).
List of all cities in Clay County, WV alphabetically
| City/Town | Postal Code | Area Code |
| Bentree, WV | 25125 | 304 |
| Bickmore, WV | 25019 | 304 |
| Big Otter, WV | 25113 | 304 |
| Bomont, WV | 25030 | 304 |
| Clay, WV | 25043 | 304 |
| Dille, WV | 26617 | 304 |
| Duck, WV | 25063 | 304 |
| Elmira, WV | 25063 | 304 |
| Fola, WV | 25019 | 304 |
| Glen, WV | 25088 | 304 |
| Harrison, WV | 25063 | 304 |
| Indore, WV | 25111 | 304 |
| Ivydale, WV | 25113 | 304 |
| Lizemores, WV | 25125 | 304 |
| Maysel, WV | 25133 | 304 |
| Nebo, WV | 25141 | 304 |
| Ovapa, WV | 25164 | 304 |
| Pigeon, WV | 25164 | 304 |
| Procious, WV | 25164 | 304 |
| Strange Creek, WV | 25063 | 304 |
| Valley Fork, WV | 25285 | 304 |
| Wallback, WV | 25285 | 304 |
| Widen, WV | 25211 | 304 |