Fairfax is located in Virginia. Fairfax, Virginia 22031has a population of 21,270. Fairfax 22031 is less family-centric than the surrounding county with 30% households with children. The county percentage for households with children is 34%.
The median household income in Fairfax, Virginia 22031 is $117,704. The median household income for the surrounding county is $127,709 compared to the national median of $66,222. The median age of people living in Fairfax 22031 is 39.1 years.
The average high temperature in July is 89.1 degrees, with an average low temperature in January of 23.9 degrees. The annual precipitation is 45.12.