PlainCities

Census tract · Fairfax County

Census Tract 4816, Fairfax County, Virginia

Census Tract 4816, GEOID 51059481600, in Fairfax County, Virginia, entirely within Difficult Run. 3,347 residents in the ACS 2020-2024 5-year estimates (±366); the 2020 Census counted 3,480.

Residents, 2020-2024

3,347

±366 (90% margin)
2020 Census count: 3,480

Median household income

$250,000 or more

The survey's top or bottom value; no margin is published
Fairfax County: $153,637

Median home value

$1,180,700

±$43,928 (90% margin)
Fairfax County: $732,800

Median gross rent

not published


Fairfax County: $2,276

Where is Census Tract 4816?

Census Tract 4816 is one of 274 census tracts in Fairfax County, Virginia. It covers 3.34 square miles of land, 1,042 residents per square mile in 2020. Its GEOID, 51059481600, names it uniquely (how tract numbers and GEOIDs work).

Places Census Tract 4816 lies in (share of its 2020 census blocks)
PlaceShare of the tract
Difficult Run100%
Census Tract 4816 (marked with a dot) in Fairfax County, Virginia. Boundaries: Census Bureau 2024.
4612.0148154817.014817.02 4816 1 mi
Census Tract 4816 (shaded) and the tracts that border it, numbered. Boundaries: Census Bureau 2024 cartographic boundary file, 1:500,000.

4 census tracts border Census Tract 4816: Tract 4612.01 ($250,000 or more), Tract 4815 ($250,000 or more), Tract 4817.01 ($250,000 or more) and Tract 4817.02 ($145,563). The figure in brackets is each tract's median household income.

Whether a tract counts as low- or moderate-income for bank lending (the Community Reinvestment Act) is set by the FFIEC against its metro area's family income: look it up in the FFIEC census geocoder.

Source: 2024 Gazetteer and 2020 block assignment files, U.S. Census Bureau · Census reference files

How many people live in Census Tract 4816?

The 2020-2024 American Community Survey puts Census Tract 4816's population at 3,347 (±366) in 1,116 households; the 2020 Census counted 3,480 residents and 1,165 housing units.

Counts, ACS 2020-2024 5-year estimates
MeasureTract 4816Difficult RunFairfax CountyVirginia
Total population3,347±3669,9381,147,8378,705,170
Households1,116±1093,139414,1013,365,732
Average household size3.00±0.173.172.752.52
Housing units1,167±1003,356430,0473,684,756

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 Census P.L. 94-171 · Check it at data.census.gov

Who lives in Census Tract 4816?

The median resident of Census Tract 4816 is 44.1 years old; 26.3% are under 18 and 15.6% are 65 or older. The largest group is non-Hispanic white residents at 78.0%, then non-Hispanic Asian residents at 8.5%. 15.2% of residents were born outside the United States.

Age, origin, education, ACS 2020-2024 5-year estimates. Race groups are non-Hispanic; Hispanic includes any race.
MeasureTract 4816Difficult RunFairfax CountyVirginia
Median age44.1±2.545.339.139.0
Under 18 years26.3%±2.9 pts26.8%22.9%21.7%
65 years and over15.6%±2.6 pts18.2%15.0%16.7%
Hispanic or Latino (any race)6.0%±4.5 pts5.1%17.6%11.0%
White alone, not Hispanic78.0%±6.6 pts69.2%46.8%58.4%
Black or African American alone, not Hispanic0.5%±0.6 pts1.0%9.4%18.3%
Asian alone, not Hispanic8.5%±3.2 pts16.5%19.9%6.9%
American Indian and Alaska Native alone, not Hispanic0.0%±1.2 pts0.0%0.1%0.1%
Native Hawaiian and Other Pacific Islander alone, not Hispanic0.0%±1.2 pts0.0%0.0%0.1%
Two or more races, not Hispanic5.3%±4.0 pts6.1%5.4%4.7%
Some other race alone, not Hispanic1.8%±1.9 pts2.1%0.8%0.6%
Born outside the United States15.2%±5.6 pts17.2%30.8%13.1%
Speak a language other than English at home (age 5+)15.4%±6.7 pts20.0%39.0%17.4%
Civilian veterans (age 18+)6.8%±2.6 pts7.8%7.5%9.4%
With a disability3.8%±1.7 pts6.1%8.0%12.5%
No health insurance coverage0.0%±1.2 pts0.3%7.1%6.9%
High school graduate or higher (age 25+)100.0%±1.8 pts99.4%93.2%91.6%
Bachelor's degree or higher (age 25+)86.1%±3.9 pts85.5%65.0%42.2%
Graduate or professional degree (age 25+)53.3%±6.3 pts48.3%33.0%18.5%
Lived in the same house a year earlier88.2%±6.6 pts92.6%87.0%86.9%

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov

What do households in Census Tract 4816 earn?

Half of the 1,116 households in Census Tract 4816 earn less than $250,000 or more a year (), against $153,637 across Fairfax County: 1st highest of the county's 270 tracts with a reliable estimate.

Income and poverty in 2024 dollars, ACS 2020-2024 5-year estimates
MeasureTract 4816Difficult RunFairfax CountyVirginia
Median household income$250,000 or more$250,000 or more$153,637$93,170
Mean household income$370,523±$40,102$356,124$195,941$128,260
Per capita income$124,889±$12,967$113,631$71,828$50,666
People below the poverty line4.0%±3.8 pts1.4%5.9%9.9%
Children under 18 below the poverty line8.0%±8.0 pts2.6%7.2%12.3%
Households receiving SNAP0.8%±1.4 pts1.4%4.3%9.1%
Households with a computer98.7%±1.1 pts99.1%98.4%95.4%
Households with a broadband subscription99.4%±1.1 pts99.3%96.4%91.0%

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov

What does housing cost in Census Tract 4816?

Owners occupy 96.9% of Census Tract 4816's occupied homes and renters 3.1%. The median owner-occupied home is valued at $1,180,700 by its owner (±$43,928).

Housing, ACS 2020-2024 5-year estimates
MeasureTract 4816Difficult RunFairfax CountyVirginia
Median home value (owner-occupied)$1,180,700±$43,928$1,111,400$732,800$383,700
Renters paying 35% or more of income on rent0.0%±100.0 pts17.0%36.3%39.4%
Median monthly owner costs, with a mortgage$4,000 or more$4,000 or more$3,227$2,127
Owner-occupied homes96.9%±3.0 pts97.7%68.6%67.3%
Renter-occupied homes3.1%±3.0 pts2.3%31.4%32.7%
Housing units1,167±1003,356430,0473,684,756
Single-family detached homes99.2%±1.3 pts99.7%45.5%61.3%
Mobile homes0.0%±3.4 pts0.0%0.5%4.3%
Built 2020 or later0.5%±0.9 pts0.2%1.3%1.7%
Built 2010 to 20194.9%±4.8 pts3.4%7.2%9.9%
Built 1939 or earlier2.7%±2.8 pts1.7%1.1%7.0%
Households with no vehicle0.0%±3.5 pts0.0%4.8%6.1%

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov

How do people in Census Tract 4816 get to work?

56.2% of Census Tract 4816's workers drive alone and 34.5% work from home. The average trip to work takes 32.4 minutes.

Work and commuting, ACS 2020-2024 5-year estimates
MeasureTract 4816Difficult RunFairfax CountyVirginia
In the labor force (age 16+)67.7%±4.9 pts65.0%70.8%65.4%
Unemployment rate4.5%±3.4 pts1.9%4.2%4.3%
Drove alone to work56.2%±7.0 pts53.3%55.4%67.6%
Carpooled2.8%±3.4 pts4.5%7.7%8.0%
Public transportation5.8%±4.1 pts2.8%4.7%2.3%
Walked0.0%±2.4 pts0.5%1.7%2.1%
Worked from home34.5%±6.6 pts37.2%28.7%18.3%
Mean travel time to work32.4 min±4.730.1 min28.9 min27.3 min

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov

How does Census Tract 4816 compare with the other tracts in Fairfax County?

Among Fairfax County's tracts with a reliable estimate, Census Tract 4816 ranks as shown below (1 = highest).

Census Tract 4816's rank among the tracts of Fairfax County
MeasureIn Fairfax County
Population181st of 271
Residents per square mile258th of 274
Median household income1st of 270
Per capita income13th of 271
Median home value14th of 263
Bachelor's degree or higher8th of 270
Median age61st of 271
Owner-occupied share18th of 266

The tracts next to it on Fairfax County's income ladder

Median household income, ACS 2020-2024 5-year estimates
TractRankMedian household incomeResidents
Tract 41561st$250,000 or more2,585
Tract 46021st$250,000 or more3,955
Tract 46031st$250,000 or more2,865
Tract 4607.021st$250,000 or more4,881
Tract 46101st$250,000 or more2,499
Tract 4612.011st$250,000 or more3,954
Tract 47011st$250,000 or more2,641
Tract 47031st$250,000 or more3,293
Tract 47041st$250,000 or more5,136
Tract 47071st$250,000 or more5,302
Tract 4713.041st$250,000 or more2,216
Tract 48011st$250,000 or more4,149
Tract 4802.011st$250,000 or more4,520
Tract 4803.011st$250,000 or more2,984
Tract 4803.021st$250,000 or more4,508
Tract 4804.011st$250,000 or more4,617
Tract 4804.021st$250,000 or more5,531
Tract 4805.011st$250,000 or more3,097
Tract 4811.051st$250,000 or more4,644
Tract 48151st$250,000 or more2,389
Tract 48161st$250,000 or more3,347
Tract 4817.011st$250,000 or more5,838
Tract 48241st$250,000 or more2,179
Tract 4825.041st$250,000 or more4,614
Tract 4826.041st$250,000 or more3,886
Tract 49101st$250,000 or more2,124
Tract 4914.051st$250,000 or more2,462
Tract 4915.021st$250,000 or more6,458
Tract 49201st$250,000 or more6,583
Tract 49211st$250,000 or more6,985
Tract 4922.011st$250,000 or more2,891
Tract 4922.021st$250,000 or more6,797
Tract 4922.031st$250,000 or more3,690
Tract 49251st$250,000 or more3,962

Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · How ranks are computed

How reliable are the figures for Census Tract 4816?

3 of the 17 figures for Census Tract 4816 on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.

A census tract's figures rest on a few hundred sampled households over five years, so its margins are wider than a city's. Two tracts differ only when the gap between them is larger than their combined 90% margin (the square root of the sum of the two squared margins). How to read a margin of error.

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · Check it at data.census.gov

How these figures are made: methodology and release checks · reading a margin of error · every state · corrections