Fairfax (city) County VA Information


Fairfax (city) County Subdivisions

Fairfax (city) County VA Data & Demographics (As of July 1, 2017)


Total Population 24,481
Daytime Population: Workers 39,127
Daytime Population: Residents 11,383
Total Daytime Population (TDP) 50,510
Ratio TDP/Total Population1 2.06
Population in Households 23,960
Population in Familes 18,598
Population in Group Qrtrs 521
Population Density2 3,924
Diversity Index3 67


Median Household Income $103,320
Average Household Income $129,938
Per Capita Income $48,565


Total Housing Units 9,347 (100%)
Owner Occupied HU 6,152 (65.8%)
Renter Occupied HU 2,871 (30.7%)
Vacant Housing Units 324 ( 3.5%)
Median Home Value $491,414
Average Home Value $544,668


Total Households 9,023
Average Household Size 2.66
Family Households 5,926
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. 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 1.13% 1.0%
Households 1.08% 0.97%
Families 0.92% 0.86%
Median Household Income   1.25%
Per Capita Income   2.39%


Fairfax (city) County VA - Peer Comparisons by Rank and Percentile

The table below compares Fairfax (city) County to the other 133 counties / independent cities and county equivalents in Virginia by rank and percentile using July 1, 2017 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 # 71 47th
Population Density # 8 95th
Diversity Index # 8 95th
Median Household Income # 5 97th
Per Capita Income # 6 96th

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