Founded in 1845, Gilmer County is one of 55 counties in the state of West Virginia. Historically, Gilmer County was formed from Kanawha and Lewis counties. The city of Glenville is the county seat. With FIPS code of 21, Gilmer County has a population of 7,377 and area of 340 square miles (881 km2).
List of all cities in Gilmer County, WV alphabetically
| City/Town | Postal Code | Area Code |
| Baldwin, WV | 26351 | 304 |
| Cedarville, WV | 26611 | 304 |
| Coxs Mills, WV | 26342 | 304 |
| Flower, WV | 26611 | 304 |
| Gilmer, WV | 26351 | 304 |
| Glenville, WV | 26351 | 304 |
| Letter Gap, WV | 25267 | 304 |
| Linn, WV | 26384 | 304 |
| Lockney, WV | 25267 | 304 |
| Nicut, WV | 26636 | 304 |
| Normantown, WV | 25267 | 304 |
| Perkins, WV | 26636 | 304 |
| Rosedale, WV | 26636 | 304 |
| Sand Fork, WV | 26430 | 304 |
| Shock, WV | 26638 | 304 |
| Stouts Mills, WV | 26430 | 304 |
| Stumptown, WV | 25267 | 304 |
| Troy, WV | 26443 | 304 |