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Zip Code 22031 — Fairfax, VA

22031 is a ZIP Code associated with Fairfax, VA, located within Fairfax. The postal region supports an estimated population of 37,276 residents across Data Pending housing units, with a population density of 2,019.4 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (38.859540, -77.259900)

Data MetricLocal Statistic
Postal / Zip Code22031
Primary CityFairfax
State / ProvinceVA
CountyFairfax
Total Population37,276
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density2,019.4 people/sq mi
TimezoneAmerica/New_York

How 22031 Compares

MetricZIP 22031Fairfax CountyVA State Average
Population37,2761,173,3528,705,380
Median IncomeData PendingN/AN/A
Population Density2,019.4 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 22180Vienna2.6 mi26,568N/A
Zip 22027Dunn Loring3.2 mi1,939N/A
Zip 22003Annandale3.2 mi57,755N/A
Zip 22032Fairfax3.2 mi29,240N/A
Zip 22042Falls Church3.6 mi35,483N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →