Residential delivery area · Virginia
ZIP Code 20109: Manassas, VA
ZIP code 20109 uses the postal name Manassas, Virginia and lies entirely in Prince William County (Census 2020 ZIP-county file). About 45,000 people live there (Census Bureau, ACS 2020-2024), the 2nd most populous of Manassas's 4 residential ZIP codes. Median household income is $89,962 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Sudley (12%), Bull Run (11%) and Innovation (10%), and 4% in smaller places; 63% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Manassas · 4 residential ZIPs
- County
- Prince William County
- Census places
- Sudley (12%) census-designated place; Bull Run (11%) census-designated place; Innovation (10%) census-designated place
- Metro area
- Washington-Arlington-Alexandria, DC-VA-MD-WV
- House district
- VA-10 119th Congress
- State
- Virginia
- Time zone
- Eastern
- Land area
- 23.8 sq mi · 1,907 people per sq mi
Where is ZIP code 20109?
20109 centers on 38.794°, -77.531° and covers 23.8 square miles of land plus 0.2 of water. It borders 8 ZIP codes: 20121, 20110, 20136, 20155, 20120, 20143, 20111, 20152.
The map draws ZIP code areas only. For the streets inside 20109, 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 20109 compare with the rest of Manassas?
| Measure | 20109 | In Manassas | In Prince William County | In VA |
|---|---|---|---|---|
| People (ACS 2020-2024) | 45,444 | 2nd of 4 | 5th of 19 | 31st of 903 |
| Median household income | $90k | 4th of 4 | 15th of 15 | 190th of 461 |
| Median home value | $421k | 4th of 4 | 17th of 17 | 155th of 552 |
Its median household income is higher than in 73% of U.S. residential ZIP codes, and it is denser than 84% 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 20109?
The 2020 Census counted 43,849 people in 20109; the ACS, which samples households over 2020-2024, estimates 45,444. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 45,444
- 2020 Census count
- 43,849
- Households
- 15,018
- Median age
- 33.2
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 20109?
Of the 45,444 people the ACS estimates in 20109, 26.9% are under 18 and 8.7% are 65 or older. The largest group by race and Hispanic origin is Hispanic or Latino (47.6%), then White (not Hispanic) (20.8%).
- Under 1826.9%
- 18 to 6464.4%
- 65 and older8.7%
- Hispanic or Latino47.6%
- White, not Hispanic20.8%
- Black, not Hispanic16.4%
- Asian, not Hispanic10.3%
- Other or two or more4.9%
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 20109 earn?
Median household income is $89,962 (ACS 2020-2024), the 15th highest of the 15 ranked ZIP codes in Prince William County.
- Median household income
- $89,962
- Income per person
- $35,823
- Below the poverty line
- 10.2%
- Unemployed (of the labor force)
- 4.9%
- Adults 25+ with a bachelor's degree
- 34.0%
- Adjusted gross income per tax return, 2022
- $56,74922,140 returns; wages 85% 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 20109?
FHFA's house price index for 20109, built from repeat sales and appraisals of the same homes, rose 78% from 2015 to 2025 and rose 45% from 2020 to 2025, and moved +3.3% in 2025.
- Median home value (owners' estimate)
- $421,100
- Median gross rent
- $2,022
- Homes owned by their occupants
- 43.8%
- Housing units
- 15,625
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 20109?
1,587 business establishments had a location in this ZIP code in 2023, 129 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction318
- Retail trade227
- Professional, scientific, and technical services146
- Accommodation and food services131
- Administrative and support and waste management and remediation services127
- Other services (except public administration)114
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 20109?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 20121 | Centreville | 27,788 | $130k | 3.8 mi |
| 20110 | Manassas | 49,890 | $119k | 4.0 mi |
| 20136 | Bristow | 32,325 | $184k | 4.5 mi |
| 20155 | Gainesville | 37,486 | $164k | 4.9 mi |
| 20120 | Centreville | 42,896 | $153k | 5.0 mi |
| 20143 | Catharpin | 1,070 | $176k | 5.9 mi |
| 20111 | Manassas | 38,124 | $114k | 6.4 mi |
| 20152 | Chantilly | 36,674 | $197k | 7.3 mi |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.