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
Fairfax County is a county in Virginia with a population of 1,144,474. It ranks #1 among counties in Virginia by population. The median age is 38.9, in line with the national median. The population is 49.9% male and 50.1% female.
The median household income in Fairfax County is $150,113, above the US median of $74,580. 4.1% of residents live below the federal poverty level. Home values sit at a median of $699,700, with monthly rent averaging $2,230. The homeownership rate of 68.3% is higher than the national rate of 64.8%.
Educational attainment in Fairfax County reflects 64.3% of adults 25 and older holding a bachelor's degree or higher, above the national average of 34.3%. Roughly 25.1% of workers primarily work from home, noticeably above the national work-from-home rate of 14.2%. The average commute is 29.5 minutes each way.
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.