States · Virginia · Fairfax County

Merrifield, 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 Merrifield, Fairfax County, Virginia

Merrifield, in Fairfax County, had 20,488 people in the 2020 census. Half its households earn more than $136,373 a year and half less, against $153,637 across Fairfax County; 5% of its people live below the poverty line. 39% of its homes are lived in by their owners and 61% 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 20,488 in the 2020 census; median age 34.6
Household income $136,373 the median, give or take $16,108 · Fairfax County: $153,637
Unemployment 3.3% Fairfax County, August 2026; 3.4% a year before
Homes 39% lived in by their owners; 61% rented
  • 9,435households
  • 76%of adults have a degree
  • 5%below the poverty line
  • 28 mintypical commute
  • 35%work from home

What residents work in

  • Professional and business services31%
  • Schools, hospitals and social care17%
  • Government14%
  • Banks, insurance and property8%
  • Restaurants, hotels and entertainment6%
  • Other services5%

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, 3 miles away (NOAA).

Largest workplaces in Merrifield

  1. Fairfax County Public SchoolsSchool district28,829FTE
  2. Fairfax Water HQWater treatment and distribution472
  3. PerLectricElectrical contractors342
  4. Zimmerman AssociatesData processing computer services340
  5. C. J. Coakley CoBuilding insulation contractors301
  6. Maxim Healthcare ServicesHome health care agencies247
  7. TargetDiscount department stores237
  8. Community Living AlternativesGroup homes, intellectual and developmental disability150

Staff on average in 2025, as each workplace reported it to OSHA with its injury records: 27 workplaces with 20 or more staff, 3,292 people in all. School districts come from the Common Core of Data (NCES, 2023–24); 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 high in parts of MerrifieldRelatively moderate

FEMA’s National Risk Index (December 2025) rates the risk each natural hazard poses to the people, buildings and farms in Merrifield’s 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.