Residential delivery area · Virginia
ZIP Code 20151: Chantilly, VA
ZIP code 20151 is in Chantilly, Virginia, entirely in Fairfax County (Census 2020 ZIP-county file). About 23,000 people live there (Census Bureau, ACS 2020-2024), the less populous of Chantilly's 2 residential ZIP codes. Median household income is $158,271 (Census Bureau, ACS 2020-2024). By Census place, 73% of its land lies in Chantilly (a census-designated place), and 3% in smaller places; 24% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Chantilly · 2 residential ZIPs
- County
- Fairfax County
- Census places
- Chantilly census-designated place
- Metro area
- Washington-Arlington-Alexandria, DC-VA-MD-WV
- House district
- VA-11 119th Congress
- State
- Virginia
- Time zone
- Eastern
- Land area
- 15.9 sq mi · 1,426 people per sq mi
- PO Box ZIPs
- 20153 also use the name Chantilly
Where is ZIP code 20151?
20151 centers on 38.897°, -77.444° and covers 15.9 square miles of land plus 0.1 of water. It borders 5 ZIP codes: 20171, 20120, 22033, 20152, 20166.
The map draws ZIP code areas only. For the streets inside 20151, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 20151 compare with the rest of Chantilly?
| Measure | 20151 | In Chantilly | In Fairfax County | In VA |
|---|---|---|---|---|
| People (ACS 2020-2024) | 22,610 | 2nd of 2 | 29th of 47 | 148th of 903 |
| Median household income | $158k | 2nd of 2 | 21st of 46 | 42nd of 461 |
| Median home value | $677k | 2nd of 2 | 27th of 46 | 57th of 552 |
Its median household income is higher than in 97% of U.S. residential ZIP codes, and it is denser than 81% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 20151?
The 2020 Census counted 22,653 people in 20151; the ACS, which samples households over 2020-2024, estimates 22,610. Between the 2010 and 2020 censuses its population grew 6.0% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 22,610
- 2020 Census count
- 22,653+6.0% since 2010 (21,374)
- Households
- 7,095
- Median age
- 41.5
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 20151?
Of the 22,610 people the ACS estimates in 20151, 24.1% are under 18 and 13.6% are 65 or older. The largest group by race and Hispanic origin is Asian (not Hispanic) (38.1%), then White (not Hispanic) (34.8%).
- Under 1824.1%
- 18 to 6462.3%
- 65 and older13.6%
- Asian, not Hispanic38.1%
- White, not Hispanic34.8%
- Hispanic or Latino19.7%
- Other or two or more3.7%
- Black, not Hispanic3.7%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 20151 earn?
Median household income is $158,271 (ACS 2020-2024), the 21st highest of the 46 ranked ZIP codes in Fairfax County. It is not measurably different from 2015-2019 ($154,170 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $158,271
- Income per person
- $60,395
- Below the poverty line
- 6.2%
- Unemployed (of the labor force)
- 3.1%
- Adults 25+ with a bachelor's degree
- 59.3%
- Adjusted gross income per tax return, 2022
- $118,59712,020 returns; wages 75% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 20151?
FHFA's house price index for 20151, built from repeat sales and appraisals of the same homes, rose 66% from 2015 to 2025 and rose 41% from 2020 to 2025, and moved +3.2% in 2025.
- Median home value (owners' estimate)
- $676,800
- Median gross rent
- $2,280
- Homes owned by their occupants
- 81.0%
- Housing units
- 7,141
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 20151?
1,988 business establishments had a location in this ZIP code in 2023, 63 more than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services559
- Construction207
- Retail trade154
- Accommodation and food services154
- Other services (except public administration)145
- Health care and social assistance142
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 20151?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 20171 | Herndon | 51,286 | $171k | 3.3 mi |
| 20120 | Centreville | 42,896 | $153k | 3.5 mi |
| 22033 | Fairfax | 39,526 | $144k | 3.5 mi |
| 20152 | Chantilly | 36,674 | $197k | 4.0 mi |
| 20166 | Sterling | 14,949 | $133k | 5.1 mi |
| 22035 | Fairfax | 0 | – | 5.2 mi (near) |
| 20191 | Reston | 31,011 | $151k | 5.6 mi (near) |
| 20121 | Centreville | 27,788 | $130k | 6.0 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.