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 High-density area
- $129,947
- Median income Above-median income area
- $520,200
- Median home value Above-median home value
- 53.8%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
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.
FHFA HPI release change
What changed in the latest House Price Index year
- FHFA House Price Index values in ZIP 20121 (Centreville, VA) rose +4.8% from 2023 to 2024. The all-transactions index moved from 279.7 in 2023 to 293.0 in 2024 (2000 = 100).
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 average Virginia ZIP), while per-capita income is $55,491. The poverty rate is 8.8%, with unemployment at 3.4%; those measures add context to the income figure. Housing is both higher-cost and owner-heavy: median home value is $520,200 (56% above the average Virginia ZIP), while 70.0% of occupied homes are owner-occupied and median rent is $2,289.
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. The page also surfaces 10 ZIP codes within roughly 10 miles and 6 more in Fairfax County, so 20121 can be compared with both its immediate and county-level context.
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.
- Health care and social assistance
Health care and social assistance
105 establishments
- Accommodation and food services
Accommodation and food services
104 establishments
- Professional, scientific, and technical services
Professional, scientific, and technical services
96 establishments
- Other services (except public administration)
Other services (except public administration)
67 establishments
- Construction
Construction
54 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, 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
Who lives in ZIP 20121?
36.1
Median Age
52.1%
Male
47.9%
Female
39.0%
Foreign-Born
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 ZIP avg
$55,491
Per Capita Income
8.8%
Poverty Rate
3.4%
Unemployment Rate
29.6 min
Mean Commute Time
How ZIP 20121 ranks among Virginia ZIPs
Centreville, VA household income vs. every Virginia ZIP code
Median household income among 804 reporting Virginia ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$129,947 Top 13% higher than 87% of 804 Virginia ZIPs
Each bar is a $20K-wide band; taller bars hold more Virginia 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?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
10,057housing units
10,057
Total Housing Units
9,891
Occupied Units
166
Vacant Units
2.81
Avg Household Size
Occupancy Type
$520,200
Median Home Value
+56% vs state ZIP avg
$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.
- 22030
Fairfax (22030)
55,066 residents
- 20110
Manassas (20110)
43,876 residents
- 20120
Centreville (20120)
40,695 residents
- 22033
Fairfax (22033)
37,691 residents
- 20109
Manassas (20109)
37,265 residents
- 20111
Manassas (20111)
30,590 residents
- 20121
Centreville (20121)
27,988 residents
- 20152
Chantilly (20152)
24,946 residents
- 20151 21,374
Chantilly (20151)
21,374 residents
What this shows Among its immediate neighbors, ZIP 20121 ranks #7 by population - useful context the national average alone can't give.
ZIP 20121 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 20124
Clifton (20124)
$221,060 median income
- 20152
Chantilly (20152)
$197,156 median income
- 20151
Chantilly (20151)
$158,271 median income
- 20120
Centreville (20120)
$152,563 median income
- 22033
Fairfax (22033)
$143,454 median income
- 22030
Fairfax (22030)
$139,831 median income
- 20121
Centreville (20121)
$129,947 median income
- 20110
Manassas (20110)
$118,486 median income
- 20111
Manassas (20111)
$113,879 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.
| 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 |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 20121, both outside VA so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (27,988 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Fairfax County
Related Areas
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.
Related
Take this with you
What to do with ZIP 20121's numbers, next.
- See how ZIP 20121 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Centreville, VA ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.