Fairfax Population

2010–2026

622

2026 projection

3.7% since 2020 (decrease)

0100200300400500600700201020122014201620182020202220242026

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Fairfax. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
2026622-50.80%
202562700.00%
2024627+50.80%
2023622-60.96%
2022628-50.79%
2021633-132.01%
2020646+7513.13%
2019571-50.87%
2018576-91.54%
2017585-71.18%

Showing 10 of 17 years.

Fairfax Demographics

47.2median age

Median age

Female47.5 yrs
Male47.1 yrs

Adults

582
162 seniors · 28%420 other adults

Sex

Female 50.6% · 355Male 49.4% · 347

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 7 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Fairfax Income

$56,250median household income

Median household income

$56,250

Half of households earn more, half earn less

Median earnings

$42,125

Typical yearly pay for a worker 25 or older.

Poverty rate

12.7%

About 1 in 8 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Fairfax Marital Status

59% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married59%56%61%
Never married21%29%12%
Divorced12%12%13%
Widowed6%3%10%
Separated2%<1%3%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201