Postal Codes

20121 ZIP Code

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ZIP code 20121 covers Centreville, Virginia, with a population of about 27,507 and a median household income of $133,024.

Population
27,5073,176 per square mile
Median age
35.53.2 points below the US average
Median household income
$133,0241.5× the Virginia median
Poverty rate
6.2%6.2 points below the US average
Typical home value
$564,223up 20.9% in five years
Median rent
$2,2401.5× the Virginia median
Degree or higher
53%18 points above the US average
Homeownership
71%6 points above the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
606

Where 20121 is

Centreville, Virginia — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population27,507
Median age35.5
Family households71.2%
Born outside the US35.3%
Speaks a language other than English at home45%
White (non-Hispanic)36.1%
Black (non-Hispanic)9%
Asian (non-Hispanic)26%
Hispanic or Latino23.3%
Veterans5.4%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$133,024
Income per person$55,445
Poverty rate6.2%
Households on SNAP or cash assistance5.5%

Household income distribution

Under $10k1.2%
$10–15k0.8%
$15–20k1.7%
$20–25k0.9%
$25–30k1.0%
$30–35k2.1%
$35–40k1.2%
$40–45k1.7%
$45–50k1.5%
$50–60k4.6%
$60–75k5.5%
$75–100k10.6%
$100–125k13.3%
$125–150k10.8%
$150–200k17.4%
$200k or more25.8%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed14,530
Mean adjusted gross income$86,664
Returns declaring $200,000 or more8.5%
Returns, under $25k23.9%
Returns, $25k–$50k18.9%
Returns, $50k–$75k15.5%
Returns, $75k–$100k11.3%
Returns, $100k–$200k22.0%
Returns, $200k or more8.5%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$488,200
Median gross rent$2,240
Rent as a share of household income28.9%
Owner-occupied71%
Vacant homes2.7%
Median year built1991

What the homes are

Detached house18.3%
Attached house59.6%
2 to 4 units3.2%
5 to 19 units15%
20 or more units4%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$564,223as of 2026-07
Typical home value, 1 yearup 0%
Typical home value, 5 yearsup 20.9%
Typical home value, 10 yearsup 61.2%
Typical asking rent$2,428as of 2026-07
Typical asking rent, 1 yeardown 0.7%
Typical asking rent, 5 yearsup 32.6%
Typical home value since 2000
200020132026$564,223$153,601

$153,601 in 2000 to $564,223 in 2026.

Typical asking rent
202020232026$2,446$1,733

$1,733 in 2020 to $2,428 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate3.6%
Bachelor's degree or higher53%
High school diploma or higher93.1%
Works from home19.1%
Drives to work alone68.4%
Takes public transport1.6%
Commutes 45 minutes or more18.7%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity23.4% 10 pts below the national average of 33.4%
Diagnosed diabetes9.8% 2.2 pts below the national average of 12%
Currently smokes8.9% 4.3 pts below the national average of 13.2%
High blood pressure25.7% 8.4 pts below the national average of 34.1%
Fair or poor general health13.9% 6.4 pts below the national average of 20.3%
No health insurance (18–64)8.2% 3.1 pts below the national average of 11.3%
Depression18.6% 3.3 pts below the national average of 21.9%
No leisure-time physical activity20.3% 5.1 pts below the national average of 25.4%
Arthritis17.3% 7.8 pts below the national average of 25.1%
Binge drinking14.5% 1.5 pts below the national average of 16%
Taking blood pressure medication71.6% 3.1 pts below the national average of 74.7%
Cancer (non-skin)4.8% 2.9 pts below the national average of 7.7%
Current asthma9.1% 1.3 pts below the national average of 10.4%
Coronary heart disease3.7% 2.5 pts below the national average of 6.2%
Routine check-up in past year75.3% 1.4 pts below the national average of 76.7%
Cholesterol screening87.4% 1.5 pts above the national average of 85.9%
Cognitive disability11.7% 3.1 pts below the national average of 14.8%
Colorectal screening62.4% 1.9 pts below the national average of 64.3%
COPD3.5% 3.1 pts below the national average of 6.6%
Visited a dentist71.3% 10 pts above the national average of 61.3%
Any disability21.8% 8.9 pts below the national average of 30.7%
Lacks emotional support24.1% 0.7 pts below the national average of 24.8%
Food insecurity11.2% 5.9 pts below the national average of 17.1%
Received food stamps6.9% 7.4 pts below the national average of 14.3%
Hearing disability4% 2.7 pts below the national average of 6.7%
High cholesterol34.9% 1.3 pts below the national average of 36.2%
Housing insecurity9.4% 4.4 pts below the national average of 13.8%
Independent living disability5.4% 3 pts below the national average of 8.4%
Lacks transport6.2% 3 pts below the national average of 9.2%
Loneliness35% 0.6 pts above the national average of 34.4%
Mammography use80.3% 4.4 pts above the national average of 75.9%
Poor mental health (14+ days)13.4% 3.4 pts below the national average of 16.8%
Mobility disability8.4% 5.6 pts below the national average of 14%
Poor physical health (14+ days)9.9% 3.6 pts below the national average of 13.5%
Self-care disability2.3% 1.7 pts below the national average of 4%
Utility shut-off threat5.4% 3.4 pts below the national average of 8.8%
Sleeps under 7 hours36.6% same as the national average of 36.4%
Stroke2.1% 1.3 pts below the national average of 3.4%
All natural teeth lost7.1% 5.9 pts below the national average of 13%
Vision disability3.5% 2.1 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments606
People employed5,719
Annual payroll$247,645,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 40.6% of US census tracts
FEMA ratingVery Low to Relatively Moderate across the 8 census tracts this ZIP code covers
Expected annual loss55.7 out of 100
Community resilience47 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Winter weather72.8Relatively Moderate at its worst in this ZIP code
Hurricane70.9Relatively Low at its worst in this ZIP code
River flooding67.4Relatively High at its worst in this ZIP code
Landslide63.4Relatively Low at its worst in this ZIP code
Hail62.5Relatively Low at its worst in this ZIP code
Lightning57Relatively Moderate at its worst in this ZIP code
Heat wave56Relatively Moderate at its worst in this ZIP code
Drought55.4Relatively Low at its worst in this ZIP code
Earthquake51.7Relatively Low at its worst in this ZIP code
Strong wind47.4Relatively Low at its worst in this ZIP code
Wildfire32.9Very Low at its worst in this ZIP code
Cold wave32.7Relatively Low at its worst in this ZIP code
Ice storm29.6Relatively Low at its worst in this ZIP code
Tornado17.5Very Low at its worst in this ZIP code
Compared with Virginia and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPVirginiaUnited States
Median household income$133,024$90,974$78,538
Income per person$55,445$49,217$43,289
Poverty rate6.2%9.9%12.4%
Median home value$488,200$360,700$303,400
Median gross rent$2,240$1,514$1,348
Homeownership71%67.2%65%
Bachelor's degree or higher53%41.5%35%
Unemployment rate3.6%4.3%5.2%
Works from home19.1%16.2%13.5%
Born outside the US35.3%12.9%13.9%
Median age35.538.838.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationMANASSAS, VA US10.1 km away

Average high and low by month

January42.4°F / 24.2°F
February45.5°F / 25.8°F
March53.8°F / 32.4°F
April65.9°F / 43.1°F
May74.2°F / 53.6°F
June83°F / 63.5°F
July87.5°F / 68.6°F
August85.4°F / 66.5°F
September78.2°F / 58.3°F
October67°F / 45.6°F
November56.4°F / 35.3°F
December46.5°F / 28.7°F
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarket75% of this ZIP code's area
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

Fairfax County Public Schools100% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability29more vulnerable than 29% of US census tracts
Socioeconomic status27more vulnerable than 27% of US census tracts
Household characteristics46more vulnerable than 46% of US census tracts
Racial and ethnic minority status70more vulnerable than 70% of US census tracts
Housing type and transport20more vulnerable than 20% of US census tracts
Walkability9 out of 20Below average
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

20120 Centreville, VA3 km away
20113 Manassas, VA5.4 km away
20111 Manassas, VA5.5 km away
20109 Manassas, VA6.8 km away
20151 Chantilly, VA7.5 km away
20124 Clifton, VA7.7 km away
20110 Manassas, VA8.3 km away
22033 Fairfax, VA8.7 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Fairfax County100% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area8.66 sq mi
Water area0.52 sq mi
Population density3,176 people per sq mi
Latitude, longitude38.8195, -77.4558

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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