Fairfax County, Virginia Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 1st-largest in Virginia
The population of Fairfax County, Virginia is 1,144,474 as of the 2023 American Community Survey, making it the 1st-largest county in Virginia. The median household income is $150,113, the median home value is $699,700, and the median age is 38.9.
The population of Fairfax County has grown 6.9% since 2010 (1,086,165 → 1,160,925), a +0.48% annualized rate.
1,144,474
Population
+0.48%
Annual growth
2927
People / sq mi
$150,113
Median Income
$699,700
Median Home Value
Fairfax County covers 391 sq mi of land at 2926.9 people per square mile.
About Fairfax County, VA
Among US counties, Fairfax County stands out first on household income: a median of $150,113, above the US median of $78,538. With 1,144,474 residents, Fairfax County is a county in Virginia. That makes it one of the ten largest counties in Virginia in the country, at #1 by population.
Households here are among the highest-earning of all US counties: median income is $150,113, above the US median of $78,538. Hardship is rare relative to US counties: a poverty rate of just 4.1%, below the national 12.4%. Real estate commands a premium here — a median home value of $699,700, with typical rent around $2,230.
Fairfax County is among the best-educated US counties: 64.3% of adults 25 and older hold a bachelor’s degree, above the national 35.0%. Remote work is widespread — 25.1% of workers stay home, above the national 14.0%, and the average commute runs about 30 minutes each way.
Taken together, the income and housing figures place Fairfax County firmly in the higher-cost, higher-earning tier of US counties — a profile that tends to track dense job markets and competitive housing.
Fairfax County Population History (2010-2024)
The county of Fairfax County had a population of 1,086,165 in 2010 and 1,160,925 in 2024, a 6.9% growth over 14 years. The peak was 1,160,925 in 2024. Average annual growth rate: 0.48%.
1,160,925
Population (2024)
1,086,165
Population (2010)
1,160,925
Peak (2024)
0.48%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 1,086,165 |
| 2011 | 1,103,571 |
| 2012 | 1,120,654 |
| 2013 | 1,132,186 |
| 2014 | 1,136,794 |
| 2015 | 1,141,040 |
| 2016 | 1,144,957 |
| 2017 | 1,149,346 |
| 2018 | 1,149,688 |
| 2019 | 1,152,359 |
| 2020 | 1,148,680 |
| 2021 | 1,142,381 |
| 2022 | 1,140,521 |
| 2023 | 1,146,677 |
| 2024 | 1,160,925 |
Race & Ethnicity
| White | 51.4% |
| Black or African American | 9.8% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.5% |
| Two or More Races | 0.0% |
Age & Sex
38.9
Median Age
50.1%
Female
49.9%
Male
14.6%
Age 65+
Age Distribution
Children (under 15): 19.0% · Seniors (65+): 14.6%
Income & Poverty
| Median household income | $150,113+$59,139 vs state |
| Mean household income | $191,191 |
| Per-capita income | $69,971 |
| Poverty rate | 4.1%-2.7% vs state |
| Unemployment rate | 2.8% |
| Employment-to-population | 67.0% |
Top Industries by Employment
The largest employment sector in Fairfax County is finance & real estate, accounting for 26.9% of workers.
How residents commute
5.3%
Drive alone
1.7%
Carpool
57.9%
Public transit
25.1%
Work from home
29.5 min
Avg commute
Housing
$699,700+$339,000 vs state
Median home value
$2,230
Median rent
68.3%
Homeownership rate
428,352
Total housing units
96.3%
Occupied
3.7%
Vacant
31.7%
Renter-occupied
Social & access
92.6%
With health insurance
98.3%
With broadband internet
37.8%
Foreign-born
7.8%
Veterans (18+)
7.8%
With a disability
61.0%
Speak language other than English at home
Education
93.2%
High School+
64.3%
Bachelor's+
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County rankings
Common questions about Fairfax County, VA
Frequently Asked Questions
Fairfax County, Virginia has a population of 1,144,474 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 1st-largest county in Virginia. Population density is 2927 people per square mile.
The population of Fairfax County has grown 6.9% since 2010 (1,086,165 → 1,160,925), a +0.48% annualized rate.
The median household income in Fairfax County, Virginia is $150,113, with mean (average) household income of $191,191 and per-capita income of $69,971. 4.1% of residents live below the federal poverty level.
In Fairfax County, the largest racial and ethnic groups are White (51.4%), Black or African American (9.8%), Hispanic or Latino (1.5%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Fairfax County, Virginia is 38.9 years. Residents are 50.1% female and 49.9% male.
The median home value in Fairfax County is $699,700 and median monthly rent is $2,230. 68.3% of occupied housing units are owner-occupied. The county has 428,352 total housing units, 3.7% of which are vacant.
The largest employment sector in Fairfax County, Virginia is finance, insurance, and real estate, employing 26.9% of workers. The unemployment rate is 2.8%.
Virginia Beach is among the largest cities associated with Fairfax County, Virginia, with a population of 457,066.
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Statewide data for Virginia
Population, race, income, age, and trends across Virginia
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.