Founded in 1784, Harrison County is one of 55 counties in the state of West Virginia. Historically, Harrison County was formed from Monongalia County. The city of Clarksburg is the county seat. With FIPS code of 33, Harrison County has a population of 65,158 and area of 416 square miles (1,077 km2).
List of all cities in Harrison County, WV alphabetically
| City/Town | Postal Code | Area Code |
| Adamsville, WV | 26431 | 304 |
| Anmoore, WV | 26323 | 304 |
| Bridgeport, WV | 26330 | 304 |
| Bristol, WV | 26426 | 304 |
| Brushy Fork, WV | 26330 | 304 |
| Clarksburg, WV | 26301 | 304 |
| 26302 | 304 | |
| 26306 | 304 | |
| 26461 | 304 | |
| Country Club, WV | 26301 | 304 |
| Craigmoore, WV | 26408 | 304 |
| Dawmont, WV | 26301 | 304 |
| Dola, WV | 26386 | 304 |
| Eastpointe, WV | 26301 | 304 |
| 26302 | 304 | |
| Enterprise, WV | 26568 | 304 |
| FBI, WV | 26306 | 304 |
| Francis Mine, WV | 26431 | 304 |
| Gypsy, WV | 26361 | 304 |
| Haywood, WV | 26366 | 304 |
| Hepzibah, WV | 26369 | 304 |
| Industrial, WV | 26426 | 304 |
| Lake Ridge, WV | 26330 | 304 |
| Laurel Park, WV | 26301 | 304 |
| Laurel Valley, WV | 26301 | 304 |
| Lost Creek, WV | 26385 | 304 |
| Lumberport, WV | 26386 | 304 |
| Maple Lake, WV | 26330 | 304 |
| McWhorter, WV | 26385 | 304 |
| Meadowbrook, WV | 26404 | 304 |
| Mount Clare, WV | 26408 | 304 |
| Nutter Fort, WV | 26301 | 304 |
| Owings, WV | 26431 | 304 |
| Peora, WV | 26431 | 304 |
| Pine Bluff, WV | 26431 | 304 |
| Reynoldsville, WV | 26422 | 304 |
| Salem, WV | 26426 | 304 |
| Saltwell, WV | 26431 | 304 |
| Shinnston, WV | 26431 | 304 |
| Spelter, WV | 26438 | 304 |
| Stonewood, WV | 26301 | 304 |
| Wallace, WV | 26448 | 304 |
| West Milford, WV | 26451 | 304 |
| Wilsonburg, WV | 26461 | 304 |
| Wolf Summit, WV | 26426 | 304 |
| Wyatt, WV | 26463 | 304 |