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ZIP CODE TABULATION AREA

20121

Virginia · 27,788 residents · 8.66 sq mi
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ZIP 20121 is home to 27,788 people in Fairfax County. 39% of residents were born outside the United States. This is an unusually credentialed place: 54% of adults have a four-year degree. Median household income runs $129,947, well clear of the $82,259 US median. Renters pay $2,289 a month at the median. Density works out to 3,209 people per square mile. Among the 42 ZIP codes in Fairfax County, 20121 ranks 34th by median household income.

$129,947
US average: $82,259
$55,491
US average: $44,673
$520,200
US average: $376,019
53.8%
US average: 35.6%
Land area
8.66 sq mi
Age, sex & households
Under 18
21.2%
Age 65+
8.5%
52.1%
47.9%
2.81 people
Race & ethnicity · 2024
2024
White, non-Hispanic32.5%(9,038)
Black9.7%(2,709)
Hispanic / Latino25.7%(7,136)
Asian26.9%(7,464)
Other5.2%(1,441)
93
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Housing
4.0
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Within Fairfax County
Income rank vs other ZIPs
LOWEST34TH OF 42HIGHEST
Adjacent ZIPs
20120$152,563
20124$221,060
20151$158,271
20170$159,466
Frequently asked

How many people live in ZIP code 20121?

ZIP code 20121 has about 27,788 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 20121?

The typical household in ZIP code 20121 earns about $129,947 a year. Half of households make more than that, and half make less.

Is ZIP code 20121 expensive?

In ZIP code 20121, the median home is worth about $520,200, and the typical rent is about $2,289 a month.

How educated are people in ZIP code 20121?

About 53.8% of adults age 25 and over in ZIP code 20121 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 20121?

About 8.8% of people in ZIP code 20121 live below the federal poverty line.

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DATA: US CENSUS BUREAU ACS 5-YEAR · ZCTA · UPDATED 2024