Fairfax County VA Information


Fairfax County Subdivisions

Fairfax County VA Data & Demographics (As of July 1, 2018)


Total Population 1,127,497
Population in Households 1,117,426
Population in Familes 927,323
Population in Group Qrtrs 10,071
Population Density1 2,884
Diversity Index2 72


Median Household Income $115,786
Average Household Income $155,909
Per Capita Income $56,493


Total Housing Units 422,728 (100%)
Owner Occupied HU 269,113 (63.7%)
Renter Occupied HU 137,579 (32.5%)
Vacant Housing Units 16,036 ( 3.8%)
Median Home Value $532,624
Average Home Value $600,828


Total Households 406,692
Average Household Size 2.75
Family Households 283,745
Average Family Size 3
  1. Population Density = Total Population per square mile.
  2. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 0.5% 0.46%
Households 0.46% 0.44%
Families 0.32% 0.34%
Median Household Income   1.4%
Per Capita Income   2.21%


Fairfax County VA - Peer Comparisons by Rank and Percentile

The table below compares Fairfax County to the other 133 counties / independent cities and county equivalents in Virginia by rank and percentile using July 1, 2018 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 1 100th
Population Density # 13 91st
Diversity Index # 5 98th
Median Household Income # 3 98th
Per Capita Income # 4 98th

Additional comparisons and rankings can be made with a VERY EASY TO USE Virginia Census Data Comparison Tool.