States · Virginia · Fairfax County

Fair Oaks, Virginia.

A community in Fairfax County, with no city government of its own. Zillow publishes no home prices for it: see Fairfax County’s.

Living in Fair Oaks, Fairfax County, Virginia

Fair Oaks, in Fairfax County, had 34,052 people in the 2020 census. Half its households earn more than $123,947 a year and half less, against $153,637 across Fairfax County; 6% of its people live below the poverty line. 45% of its homes are lived in by their owners and 55% are rented. Unemployment in Fairfax County was 3.3% in August 2026, and the county had 0.3% fewer jobs in 2025 than the year before. The most residents work in professional services, then schools and health care.

People 34,052 in the 2020 census; median age 35.5
Household income $123,947 the median, give or take $11,442 · Fairfax County: $153,637
Unemployment 3.3% Fairfax County, August 2026; 3.4% a year before
Homes 45% lived in by their owners; 55% rented
  • 15,298households
  • 69%of adults have a degree
  • 6%below the poverty line
  • 27 mintypical commute
  • 29%work from home

What residents work in

  • Professional and business services28%
  • Schools, hospitals and social care19%
  • Government9%
  • Restaurants, hotels and entertainment8%
  • Banks, insurance and property8%
  • Shops (retail)7%

Employed residents by industry, from the Census survey. Fairfax County had 634,638 jobs in 2025, 0.3% fewer than the year before (Bureau of Labor Statistics).

Weather through the year

Average daily high and low for each month: coldest in January, 42° and 23°; warmest in July, 84° and 67° 20° 40° 60° 80° J 42° 23° F M A M J J 84° 67° A S O N D
Average daily high and low for each month: coldest in January, 42° and 23°; warmest in July, 84° and 67° 20° 40° 60° 80° J 42° 23° F M A M J J 84° 67° A S O N D

Coldest in January, with highs near 42° and lows near 23°; warmest in July, with highs near 84° and lows near 67°. About 18 inches of snow and 44 inches of rain and melted snow a year.

Average daily high and low, 1991–2020, at the Vienna weather station, 4 miles away (NOAA).

Largest workplaces in Fair Oaks

  1. Northern Virginia Community College - AnnandaleCommunity colleges3,636
  2. Inova Fair Oaks HospitalGeneral hospital1,061FTE
  3. Wegmans Food MarketsRetail supermarkets484
  4. Costco WholesaleWholesale grocer435
  5. First Heritage MortgageBrokerages, mortgage286
  6. Republic Services ofRefuse collection services253
  7. Hill Valley HealthcareSkilled nursing facilities155
  8. Compass Group128

Staff on average in 2025, as each workplace reported it to OSHA with its injury records: 25 workplaces with 20 or more staff, 7,761 people in all. Hospitals come from their Medicare cost reports (CMS, 2023); FTE marks full-time equivalent staff. Not listed: many offices and banks, which need not report to OSHA; military bases, whose staff OPM withholds; and, in about half the states, city and county governments.

Natural hazards

  1. Winter weatherRelatively moderate
  2. LightningRelatively moderate

FEMA’s National Risk Index (December 2025) rates the risk each natural hazard poses to the people, buildings and farms in Fair Oaks’ census tracts, against the rest of the country; all of them together, very low. It is meant for planning, not a substitute for a local risk assessment or a flood map: FEMA’s index.

From the U.S. Census Bureau’s 2020 census and its American Community Survey (2020–2024 five-year estimates), and the Bureau of Labor Statistics. A survey, so each figure has a margin of error, and figures it is not sure of are left out. More on Fairfax County.