
Fairfax
- County:
- Fairfax County
- County Seat:
- Yes
- Area (mi²):
- 6.241
- State:
- Virginia
Fairfax is a city located in Fairfax County, Virginia. Fairfax has a 2025 population of 25,788. It is also the county seat of .Fairfax is currently growing at a rate of 1.26% annually and its population has increased by 6.66% since the most recent census, which recorded a population of 24,177 in 2020.
The average household income in Fairfax is $170,219 with a poverty rate of 9.91%. The median age in Fairfax is 37.3 years: 35.7 years for males, and 38.1 years for females.