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 classified by USPS as a standard delivery area and covers roughly 22.4 square miles in Centreville, Fairfax County, Virginia. The area is home to 27,988 residents, producing a population density of 1,248 people per square mile, and falls within the New York time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 20121 against Virginia and the nation.
On the economic side, the median household income for ZIP 20121 sits at $129,947 (52% above the Virginia average), while per-capita income is $55,491. The poverty rate stands at 8.8% and the unemployment rate at 3.4%. On housing, the median home value is $520,200 (56% above the state average) with median rent at $2,289 per month, and 70.0% of occupied units are owner-occupied, a direct signal of whether 20121 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 53.8% of adults hold a bachelor's degree or higher, the median age is 36.1, and the average commute is 30 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Fairfax County, so you can benchmark 20121 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Top industries in ZIP 20121
Top 5 sectors by establishment count
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 + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, 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; HUD FMR + 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
$55,491
Per Capita Income
8.8%
Poverty Rate
3.4%
Unemployment Rate
29.6 min
Mean Commute Time
How ZIP 20121 ranks nationally
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
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?
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
$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.
- 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 |
More ZIP Codes in Fairfax County
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Frequently Asked Questions
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What is the population of ZIP code 20121? ▼
What is the median household income in ZIP 20121? ▼
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How many businesses are in ZIP code 20121? ▼
What are the main industries in ZIP code 20121? ▼
How have home values changed in ZIP code 20121? ▼
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What is the average commute time in ZIP 20121? ▼
What percentage of residents own vs. rent in ZIP 20121? ▼
What is the poverty rate in ZIP code 20121? ▼
ZIP Code Research Guides
Official Data Resources for Centreville, VA
Verify and explore additional data for this area using these official government sources.
Read our methodology to see how this data is sourced, computed, and verified.