PlainZIP

Centreville, VA · standard

ZIP Code 20121

Fairfax County, Virginia - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

27,988
1,248/sq mi
$129,947
Median income
$520,200
Median home value
53.8%
Bachelor's or higher

The verdict

Centreville pairs a top-decile household income with upper-quartile home values, in a low-density, homeowner-dominated area.

Top 7%
household income, US ZIPs
Top 12%
home value, US ZIPs
1,248
people per sq mi
70%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 20121 against every reporting US ZIP.

ZIP code 20121 is a densely settled ZIP (a standard USPS delivery area) in Centreville, Fairfax County, Virginia, with 27,988 residents across 22.4 square miles, a density of 1,248 people per square mile, in the New York time zone.

ZIP 20121 skews affluent, with a median household income of $129,947 (52% above the Virginia average), while per-capita income is $55,491. 8.8% of residents live below the poverty line, and the unemployment rate reads 3.4%. The typical home here is valued at $520,200 (56% above the state average); renters pay a median of $2,289 monthly, and 70.0% of units are owner-occupied.

This is a highly-educated ZIP: 53.8% of adults hold a bachelor's degree or higher, the median age is 36.1, and the average commute is 30 minutes. Beyond these figures, 10 nearby ZIP codes within about 10 miles are surfaced below, along with 6 more sharing Fairfax County, letting you compare 20121 to its immediate surroundings rather than a national baseline alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 20121

Top 5 sectors by establishment count in Centreville, VA

Which industries have the most business establishments in ZIP 20121.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 20121, Centreville, VA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

27,988

Population

22.4

Area (sq mi)

1,248

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 20121?

36.1

Median Age

52.1%

Male

47.9%

Female

39.0%

Foreign-Born

White 37.6%
African American 9.9%
Asian 26.9%
American Indian or Alaska Native 0.8%
Native Hawaiian or Pacific Islander 0.2%
Two or More Ethnicities 18.4%
Hispanic or Latino 25.7%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$129,947

Median Household Income

+52% vs state

$55,491

Per Capita Income

8.8%

Poverty Rate

3.4%

Unemployment Rate

29.6 min

Mean Commute Time

How ZIP 20121 ranks nationally

Centreville, VA household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$129,947 Top 7% higher than 93% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Below this entry. $120,000–$140,000: 1,362 US ZIPs (4%). This entry sits in this band. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 70.7%
Bachelor's Degree or Higher 53.8%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

10,057

Total Housing Units

9,891

Occupied Units

166

Vacant Units

2.81

Avg Household Size

Occupancy Type

Owner 70.0%
Renter 30.0%

$520,200

Median Home Value

+56% vs state

$2,289

Median Rent

1991

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+4.8%

YoY Change (2024)

293

HPI Index (2000 = 100)

+193%

Total Change Since 2000

Home values in ZIP 20121 have increased 4.8% over the past year (2024). Since 2000, this ZIP has seen +193% cumulative appreciation.

Year Annual Change HPI Index
2020 +3.5% 225
2021 +7.0% 241
2022 +20.9% 291
2023 -4.0% 280
2024 +4.8% 293

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 629 business establishments in ZIP 20121, employing approximately 6,063 people with a combined annual payroll of $266,140,000.

629

Businesses

6,063

Employees

$266.1M

Annual Payroll

15

Industry Sectors

Industry Establishments % of Total
Health care and social assistance 105 16.7%
Accommodation and food services 104 16.5%
Professional, scientific, and technical services 96 15.3%
Other services (except public administration) 67 10.7%
Construction 54 8.6%
Retail trade 51 8.1%
Finance and insurance 30 4.8%
Real estate and rental and leasing 25 4.0%
Educational services 25 4.0%
Administrative and support and waste management and remediation services 24 3.8%
Transportation and warehousing 17 2.7%
Manufacturing 8 1.3%
Wholesale trade 8 1.3%
Arts, entertainment, and recreation 8 1.3%
Information 6 0.9%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 20121 vs 20120 →

ZIP 20121 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 20121 ranks #7 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 20121 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 20121 ranks #7 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
20120 Centreville, VA 40,695 2.7 mi
20109 Manassas, VA 37,265 4.0 mi
20151 Chantilly, VA 21,374 5.5 mi
20110 Manassas, VA 43,876 5.1 mi
20111 Manassas, VA 30,590 5.0 mi
20124 Clifton, VA 14,857 4.5 mi
22033 Fairfax, VA 37,691 5.7 mi
22035 Fairfax, VA 0 6.1 mi
22030 Fairfax, VA 55,066 6.6 mi
20152 Chantilly, VA 24,946 7.3 mi

More ZIP Codes in Fairfax County

22003 standard
Annandale, VA
Pop: 55,990
22030 standard
Fairfax, VA
Pop: 55,066
20171 standard
Herndon, VA
Pop: 45,887
22015 standard
Burke, VA
Pop: 43,102
20170 standard
Herndon, VA
Pop: 41,236
20120 standard
Centreville, VA
Pop: 40,695

Related Areas

Fairfax County Centreville, VA Virginia

Frequently Asked Questions

What county is ZIP code 20121 in? ▼
ZIP code 20121 (Centreville) is located in Fairfax County, Virginia. Fairfax County contains multiple ZIP codes, see the full list at /counties/fairfax-va.
What is the population of ZIP code 20121? ▼
ZIP code 20121 in Centreville, VA has a population of 27,988 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 20121? ▼
The median household income in ZIP 20121 is $129,947, which is 70% above the national average of $76,288.
What is the average home value in ZIP 20121? ▼
The median home value in ZIP 20121 is $520,200, which is 87% above the national average of $278,155.
What is the demographic makeup of ZIP 20121? ▼
The largest racial group in ZIP 20121 is White at 37.6%. Hispanic or Latino residents make up 25.7% of the population.
How many businesses are in ZIP code 20121? ▼
ZIP code 20121 has 629 business establishments employing approximately 6,063 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 20121? ▼
The top industries by establishment count in ZIP 20121 are: Health care and social assistance (105), Accommodation and food services (104), Professional, scientific, and technical services (96). There are 15 industry sectors represented in total.
How have home values changed in ZIP code 20121? ▼
According to the FHFA House Price Index, home values in ZIP 20121 increased by 4.8% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 193%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 20121? ▼
In ZIP code 20121, 70.7% of residents aged 25+ have a high school diploma or higher, and 53.8% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 20121? ▼
The mean commute time for workers in ZIP code 20121 is 29.6 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 20121? ▼
In ZIP code 20121, approximately 70.0% of occupied housing units are owner-occupied and 30.0% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 20121? ▼
The poverty rate in ZIP code 20121 is 8.8% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.