Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — STATE/VA/COUNTY/FAIRFAX-CITY

Fairfax City, VA ZIP codes

Fairfax City, VA is mostly served by 22030, 22031 and 22032, which it shares with a neighbouring county. The one ZIP code mostly in it, 22038, has no residents: it is a PO box or a single address.

Fairfax is an independent city: it belongs to no county, and the Census Bureau counts it as a county of its own. Fairfax County, which borders it, is a separate county. The Fairfax town page lists the ZIP codes the Postal Service addresses as Fairfax, including any past the line. See Fairfax County ZIP codes.

ZIP codes
1
Partly in it
3 more
Towns
1
County FIPS
51600
Population
25,026
Median household income
$132,348
Land area
6 sq mi

Fairfax City ZIP codes by town

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

ZIP codes partly in Fairfax City

These ZIP codes lie mostly in a neighbouring county but each cover a twentieth or more of Fairfax City.

Map of Fairfax City ZIP codes

220302203122032

The ZIP codes of Fairfax City, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Fairfax City in numbers

About 25,026 people live in Fairfax City, in 9,155 households, the 72nd most populous of Virginia's 123 counties. The median household income is $132,348 a year, 42% above the Virginia median of $93,170 (US: $80,734). The median owner-occupied home is valued at $722,600 (88% above the Virginia median), and median gross rent is $2,245 a month. The median age is 36.6; 62.4% of adults 25 and over hold a bachelor's degree or higher (42.2% across Virginia); the average commute takes 28 minutes.

Population25,026Fairfax city25,026
Households9,155Fairfax city9,155
Median age36.6Fairfax city36.6Virginia39.0US 38.9
Median household income$132,348Fairfax city$132,348Virginia$93,170US $80,734
Median home value$722,600Fairfax city$722,600Virginia$383,700US $332,700
Median gross rent$2,245Fairfax city$2,245Virginia$1,579US $1,413
Bachelor's degree or higher62.4%Fairfax city62.4%Virginia42.2%US 35.7%
Mean commute28.0 minFairfax city28.0 minVirginia27.3 minUS 26.4 min
Population density4,010 / sq miFairfax city4,010 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.

Neighbouring counties

Counties that share a ZIP code with Fairfax City.

Not sure you are in Fairfax City? What county am I in? answers from your location, near a county line included.

Every ZIP code in Fairfax City, with figures

ZIP codes in Fairfax City
ZIP City Type
22038 Fairfax , VA No street area

Cite this page

zipcodes.pro. “Fairfax City ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/va/county/fairfax-city

Underlying data is public domain or openly licensed — sources, vintages and licences.