Census tract · Prince William County
Census Tract 9012.21, Prince William County, Virginia
Census Tract 9012.21, GEOID 51153901221, in Prince William County, Virginia, entirely within Lake Ridge. 6,771 residents in the ACS 2020-2024 5-year estimates (±1,293); the 2020 Census counted 5,646.
Residents, 2020-2024
6,771
±1,293 (90% margin)
2020 Census count: 5,646
Median household income
$115,496
±$19,037 (90% margin)
Prince William County: $131,402
Median home value
$376,700
±$50,938 (90% margin)
Prince William County: $530,100
Median gross rent
$1,921
±$107 (90% margin)
Prince William County: $2,067
Where is Census Tract 9012.21?
Census Tract 9012.21 is one of 93 census tracts in Prince William County, Virginia. It covers 0.89 square miles of land, 6,323 residents per square mile in 2020. Its GEOID, 51153901221, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Lake Ridge | 100% |
7 census tracts border Census Tract 9012.21: Tract 4922.01 in Fairfax County ($250,000 or more), Tract 9012.22 ($136,280), Tract 9012.23 ($117,500), Tract 9012.24 ($207,863), Tract 9012.25 ($141,219), Tract 9012.35 ($208,125) and Tract 9012.37 ($116,442). 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 9012.21?
The 2020-2024 American Community Survey puts Census Tract 9012.21's population at 6,771 (±1,293) in 2,438 households; the 2020 Census counted 5,646 residents and 2,320 housing units.
| Measure | Tract 9012.21 | Lake Ridge |
|---|---|---|
| Total population | 6,771 ±1,293 | 46,049 |
| Households | 2,438 ±303 | 16,015 |
| Average household size | 2.78 ±0.34 | 2.87 |
| Housing units | 2,481 ±293 | 16,366 |
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 9012.21?
The median resident of Census Tract 9012.21 is 34.5 years old; 21.3% are under 18 and 9.8% are 65 or older. The largest group is non-Hispanic white residents at 42.1%, then non-Hispanic Black residents at 32.6%. 29.7% of residents were born outside the United States.
| Measure | Tract 9012.21 | Lake Ridge |
|---|---|---|
| Median age | 34.5 ±4.8 | 38.0 |
| Under 18 years | 21.3% ±5.2 pts | 24.8% |
| 65 years and over | 9.8% ±3.0 pts | 13.3% |
| Hispanic or Latino (any race) | 10.5% ±4.3 pts | 21.2% |
| White alone, not Hispanic | 42.1% ±10.4 pts | 42.2% |
| Black or African American alone, not Hispanic | 32.6% ±12.2 pts | 19.2% |
| Asian alone, not Hispanic | 7.9% ±4.1 pts | 8.9% |
| American Indian and Alaska Native alone, not Hispanic | 0.2% ±0.4 pts | 0.1% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.6 pts | 0.1% |
| Two or more races, not Hispanic | 6.2% ±3.7 pts | 7.1% |
| Some other race alone, not Hispanic | 0.5% ±0.9 pts | 1.3% |
| Born outside the United States | 29.7% ±10.0 pts | 25.0% |
| Speak a language other than English at home (age 5+) | 33.3% ±11.3 pts | 33.3% |
| Civilian veterans (age 18+) | 8.3% ±3.5 pts | 12.3% |
| With a disability | 3.5% ±2.1 pts | 10.0% |
| No health insurance coverage | 7.1% ±3.7 pts | 8.2% |
| High school graduate or higher (age 25+) | 93.4% ±3.7 pts | 92.0% |
| Bachelor's degree or higher (age 25+) | 40.4% ±7.3 pts | 50.0% |
| Graduate or professional degree (age 25+) | 16.7% ±5.0 pts | 21.2% |
| Lived in the same house a year earlier | 80.6% ±6.9 pts | 87.5% |
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 9012.21 earn?
Half of the 2,438 households in Census Tract 9012.21 earn less than $115,496 a year (±$19,037), against $131,402 across Prince William County: 56th highest of the county's 92 tracts with a reliable estimate. 8.6% of residents live below the poverty line.
| Measure | Tract 9012.21 | Lake Ridge |
|---|---|---|
| Median household income | $115,496 ±$19,037 | $127,154 |
| Mean household income | $120,418 ±$11,379 | $147,874 |
| Per capita income | $42,853 ±$5,158 | $52,155 |
| People below the poverty line | 8.6% ±3.4 pts | 5.8% |
| Children under 18 below the poverty line | 7.4% ±6.6 pts | 6.4% |
| Households receiving SNAP | 8.4% ±5.9 pts | 4.9% |
| Households with a computer | 100.0% ±1.6 pts | 98.3% |
| Households with a broadband subscription | 98.3% ±2.3 pts | 96.9% |
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 9012.21?
Owners occupy 56.8% of Census Tract 9012.21's occupied homes and renters 43.2%. The median owner-occupied home is valued at $376,700 by its owner (±$50,938). The median renter pays $1,921 a month including utilities, and 47.7% of renters pay 35% or more of their income on rent.
| Measure | Tract 9012.21 | Lake Ridge |
|---|---|---|
| Median home value (owner-occupied) | $376,700 ±$50,938 | $471,200 |
| Median gross rent | $1,921 ±$107 | $2,033 |
| Renters paying 35% or more of income on rent | 47.7% ±17.9 pts | 32.7% |
| Median monthly owner costs, with a mortgage | $2,208 ±$234 | $2,387 |
| Owner-occupied homes | 56.8% ±8.7 pts | 76.4% |
| Renter-occupied homes | 43.2% ±8.7 pts | 23.6% |
| Housing units | 2,481 ±293 | 16,366 |
| Single-family detached homes | 21.7% ±6.4 pts | 39.3% |
| Mobile homes | 0.0% ±1.6 pts | 0.4% |
| Built 2020 or later | 0.8% ±1.2 pts | 0.2% |
| Built 2010 to 2019 | 3.4% ±3.9 pts | 6.9% |
| Built 1939 or earlier | 0.0% ±1.6 pts | 0.1% |
| Households with no vehicle | 4.2% ±2.9 pts | 2.8% |
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 9012.21 get to work?
67.0% of Census Tract 9012.21's workers drive alone and 15.9% work from home. The average trip to work takes 34.2 minutes.
| Measure | Tract 9012.21 | Lake Ridge |
|---|---|---|
| In the labor force (age 16+) | 75.8% ±4.9 pts | 70.5% |
| Unemployment rate | 3.1% ±2.9 pts | 4.0% |
| Drove alone to work | 67.0% ±9.6 pts | 66.9% |
| Carpooled | 13.5% ±11.5 pts | 9.5% |
| Public transportation | 0.6% ±0.8 pts | 2.1% |
| Walked | 2.6% ±2.7 pts | 0.7% |
| Worked from home | 15.9% ±6.1 pts | 19.9% |
| Mean travel time to work | 34.2 min ±3.0 | 35.7 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 9012.21 compare with the other tracts in Prince William County?
Among Prince William County's tracts with a reliable estimate, Census Tract 9012.21 ranks as shown below (1 = highest).
| Measure | In Prince William County | In Lake Ridge |
|---|---|---|
| Population | 17th of 92 | 1st of 11 |
| Residents per square mile | 17th of 93 | 2nd of 11 |
| Median household income | 56th of 92 | 8th of 11 |
| Per capita income | 63rd of 92 | 10th of 11 |
| Median home value | 83rd of 91 | 11th of 11 |
| Median gross rent | 64th of 85 | 9th of 10 |
| Poverty rate | 14th of 29 | 3rd of 4 |
| Bachelor's degree or higher | 56th of 92 | 9th of 11 |
| Median age | 66th of 92 | 11th of 11 |
| Owner-occupied share | 72nd of 91 | 10th of 11 |
The tracts next to it on Prince William County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 9012.27 | 53rd | $117,083±$28,079 · within the margin of this tract |
| Tract 9012.37 | 54th | $116,442±$24,909 · within the margin of this tract |
| Tract 9012.28 | 55th | $116,011±$21,718 · within the margin of this tract |
| Tract 9012.21 | 56th | $115,496±$19,037 |
| Tract 9017.03 | 57th | $114,355±$21,182 · within the margin of this tract |
| Tract 9007.02 | 58th | $114,096±$9,285 · within the margin of this tract |
| Tract 9017.02 | 59th | $113,388±$2,108 · within the margin of this tract |
"Within the margin": the two incomes differ by less than their combined 90% margins, so the survey cannot say which is higher and the ranks between them are not firm.
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 9012.21?
Every figure for Census Tract 9012.21 on this page has a coefficient of variation under 40%, the Census Bureau's threshold for a usable estimate.
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