Fairfax County's 2026 population is estimated at 1,189,421, reflecting a 1.21% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Fairfax County is the largest county in Virginia. The 2010 population was 1,086,165 and has grown 9.51% since 2010.
Data after 2023 is projected based on recent change
Overall: 39.1 years
Female: 39.9 years
Male: 38.3 years
There are 885,527 adults, (171,935 of whom are seniors) in Fairfax County.
Female: 574,634 (50.1%)
Male: 573,203 (49.9%)
The racial composition of Fairfax County includes 49.14% White, 19.95% Asian, 9.62% Black or African American, 7.34% other race, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 564,082 | 49.14% |
| Asian | 228,940 | 19.95% |
| Two or more races | 153,679 | 13.39% |
| Black or African American | 110,478 | 9.62% |
| Other race | 84,304 | 7.34% |
| Native American | 5,846 | 0.51% |
| Native Hawaiian or Pacific Islander | 508 | 0.04% |
Fairfax County 's average per capita income is $86,257. Household income levels show a median of $153,637. The poverty rate stands at 5.94%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $204,105 | $247,702 |
| Families | $183,217 | $225,060 |
| Households | $153,637 | $195,941 |
| Non Families | $98,625 | $121,562 |
Average Income
Median Household Income
Poverty Rate
