Fairfax County
Fairfax County is significantly wealthier than the US average, with a median household income of $153,637. Population has grown 18% since 2000. 65% of adults hold a bachelor's degree or higher, well above the national rate of 36%. Median home value has roughly tripled since 2000, reaching $732,800. Poverty is rare here, at 5.9% of residents. It ranks in the top 1% of US counties for household income.
Population & growth
PEP 2025 EST:1,167,873 residents (Census Bureau Vintage 2025, released March 2026)
Income & economy
Housing
Race & ethnicity
Detailed origins & ancestry
+ 10 more hispanic origin groups with data
+ 11 more asian origin groups with data
+ 51 more ancestry groups with data
Education
Commute & transportation
Work & employment
People & community
Places similar to Fairfax County
Compare Fairfax County to nearby counties
How many people live in Fairfax County, Virginia?
Fairfax County, Virginia has about 1,147,837 residents according to the 2024 American Community Survey.
What is the median household income in Fairfax County, Virginia?
The typical household in Fairfax County, Virginia earns about $153,637 a year. Half of households make more than that, and half make less.
Is Fairfax County, Virginia expensive?
In Fairfax County, Virginia, the median home is worth about $732,800, and the typical rent is about $2,276 a month.
How educated are people in Fairfax County, Virginia?
About 65.0% of adults age 25 and over in Fairfax County, Virginia hold a bachelor's degree or higher.
What is the poverty rate in Fairfax County, Virginia?
About 5.9% of people in Fairfax County, Virginia live below the federal poverty line.
Has Fairfax County, Virginia grown since 1990?
Yes, Fairfax County, Virginia has grown since 1990. The population has added about 329,253 residents, a change of about 40 percent over that period.
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024