Fairfax County · Virginia
ZIP code 20120
- Population
- 42,917
- Median income
- $149,844
- Median home
- $620,100
- Sales tax
- 4.3%
ZCTA residents
Household, past 12 months
Owner-occupied value
Virginia state rate
Quick answer
ZIP 20120 sits in Fairfax County, Virginia and is home to 42,917 people. Median household income is $149,844, the median home is worth $620,100 and median gross rent is $2,244. 74.9% of households own their home, and purchases are taxed at 4.3% (Virginia state rate).
- County
- Fairfax County
- State
- Virginia (VA)
- Area codes
- Not published
- Metro area
- Outside covered metros
FIPS 51059
903 ZIPs covered
No NANPA match for this ZIP
Rate jurisdiction used for tax
The numbers for 20120
American Community Survey 2019-2023 ACS 5-year estimates for this ZCTA.
- Population
- 42,917ZIP 20120 residents
- Median household income
- $149,844Past 12 months, inflation adjusted
- Median home value
- $620,100Owner-occupied units
- Median gross rent
- $2,244Rent plus utilities, monthly
- Median age
- 38.1 yrsAll residents
- Homeownership rate
- 74.9%Owner-occupied households
Sales tax in 20120
What a purchase inside this ZIP costs at checkout.
Virginia levies 4.3% statewide, and counties, cities and special districts inside this ZIP can add their own local rate on top. Check the county page for the local component before you quote a price.
Affordability in this ZIP
Derived from the Census medians above — indicative, not an offer.
A rent burden above 30% is the federal threshold for cost-burdened households, and a price-to-income multiple above 4× is generally considered a stretched housing market. The mortgage figure is principal and interest only — taxes, insurance and HOA dues are extra.
How 20120 compares
ZIP 20120 against the median ZIP in Fairfax County and across Virginia.
| Measure | ZIP 20120 | County median | State median | vs state |
|---|---|---|---|---|
| Median household income | $149,844 | $151,830 | $72,517 | +107% |
| Median home value | $620,100 | $666,600 | $255,900 | +142% |
| Median gross rent | $2,244 | $2,276 | $1,108 | +103% |
| Population | 42,917 | 27,770 | 2,686 | +1498% |
Medians are computed across the 43 ZIP areas in Fairfax County and the 903 ZIP areas in Virginia.
Statewide rank
Where this ZIP places among all 903 Virginia ZIP areas.
- Income
- #60
- Home value
- #75
- Population
- #37
richer than 93% of 801 state ZIPs
above 91% of 791 state ZIPs
larger than 96% of 903 state ZIPs
Comparable ZIP codes
Virginia ZIP areas with almost the same household income.
Nearby ZIP codes
Other ZIP codes filed under Fairfax County.
ZIP 20120 questions
Common questions about this ZIP code.
- Where is ZIP code 20120?
- ZIP 20120 lies mostly in Fairfax County, Virginia. County assignment follows the largest share of land area, so a ZIP straddling a county line is filed under its dominant county.
- What sales tax do I pay in 20120?
- Virginia charges 4.3% statewide, plus any county, city or district rate that applies locally.
- Is 20120 expensive to live in?
- Median rent runs $2,244 a month, about 18% of median household income, and the median home is worth $620,100 — +142% against the typical Virginia ZIP.
- Is a ZCTA the same as a postal ZIP code?
- Not exactly. The Census builds ZIP Code Tabulation Areas from the ZIP codes of addresses inside each census block, so a ZCTA can differ slightly from the USPS delivery route of the same number, and PO-box-only ZIPs have no ZCTA at all.
Keep going
Related pages for this area.
Sources & transparency
- US Census Bureau, ACS 2019-2023 5-year estimates — 2019-2023 ACS 5-year — population, income, housing
- Census 2020 ZCTA-to-county relationship file — County assignment by largest land-area overlap
- Virginia Department of Taxation — Sales tax rates and local add-ons
Last reviewed December 2024. Figures are published for reference and can change; verify with the source agency before filing or contracting. How we build and check this data.