Founded in 1928, Martinsville is one of 38 independent cities in the state of Virginia. Historically, Martinsville was formed from Henry County. With FIPS code of 690, Martinsville has a population of 13,517 and area of 11 square miles (28 km2).
List of all cities in Martinsville City County, VA alphabetically
| City/Town | Postal Code | Area Code |
| Martinsville, VA | 24112 | 276 |
| 24113 | 276 | |
| 24114 | 276 | |
| 24115 | 276 |