Founded in 1961, Fairfax is one of 38 independent cities in the state of Virginia. Historically, Fairfax was formed from Fairfax County. With FIPS code of 600, Fairfax has a population of 24,276 and area of 6 square miles (16 km2).
List of all cities in Fairfax City County, VA alphabetically
| City/Town | Postal Code | Area Code |
| Fairfax, VA | 22030 | 703/571 |
| 22038 | 703/571 |