Fairfax is a city located in Virginia. With a 2020 population of 25,228, it is the 23rd largest city in Virginia and the 1525th largest city in the United States. Fairfax is currently growing at a rate of 1.31% annually and its population has increased by 11.80% since the most recent census, which recorded a population of 22,565 in 2010. Spanning over 6 miles, Fairfax has a population density of 4,043 people per square mile.
The average household income in Fairfax is $132,435 with a poverty rate of 8.73%. The median rental costs in recent years comes to $1,899 per month, and the median house value is $533,300. The median age in Fairfax is 38.1 years, 36.3 years for males, and 39.5 years for females. For every 100 females there are 97.8 males.