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

Fairfax County, VA ZIP codes

There are 76 ZIP codes in Fairfax County, VA, in 24 towns, from 20120 to 22315. The largest are 22003 (Annandale), 22030 (Fairfax) and 20171 (Herndon).

The county seat is Fairfax.

ZIP codes
76
Towns
24
County seat
Fairfax
County FIPS
51059
Population
1,147,837
Median household income
$153,637
Land area
391 sq mi
Area codes
571, 703

Fairfax County 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.

Map of Fairfax County ZIP codes

20120201212012220124201512015320170201712017220190201912019220194201952019622003220092201522027220302203122032220332203422035220362203722039220412204222043220442206022066220672207922081220822209522096221012210222103221062210722108221092211622118221192212122122221242215022151221522215322156221582215922160221612218022181221822218322185221992230322306223072230822309223102231222315

The ZIP codes of Fairfax County, 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 County in numbers

About 1,147,837 people live in Fairfax County, in 414,101 households, the most populous of Virginia's 123 counties. The median household income is $153,637 a year, 65% above the Virginia median of $93,170 (US: $80,734). The median owner-occupied home is valued at $732,800 (91% above the Virginia median), and median gross rent is $2,276 a month. The median age is 39.1; 65.0% of adults 25 and over hold a bachelor's degree or higher (42.2% across Virginia); the average commute takes 29 minutes.

Population1,147,837Fairfax1,147,837
Households414,101Fairfax414,101
Median age39.1Fairfax39.1Virginia39.0US 38.9
Median household income$153,637Fairfax$153,637Virginia$93,170US $80,734
Median home value$732,800Fairfax$732,800Virginia$383,700US $332,700
Median gross rent$2,276Fairfax$2,276Virginia$1,579US $1,413
Bachelor's degree or higher65.0%Fairfax65.0%Virginia42.2%US 35.7%
Mean commute28.9 minFairfax28.9 minVirginia27.3 minUS 26.4 min
Population density2,935 / sq miFairfax2,935 / 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.

Largest towns in Fairfax County

Largest towns in Fairfax County
TownZIP codesPopulation
Alexandria 8 156,976
Centreville 3 71,706
Reston 6 64,414
Mc Lean 6 60,137
Burke 2 44,029
Annandale 1 41,705
Oakton 1 36,528
Springfield 9 31,154
Fairfax 8 25,026
Herndon 5 24,672
Chantilly 2 24,036
Lorton 2 20,991
Merrifield 5 20,698
Vienna 5 16,412
Great Falls 1 15,228

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Fairfax County.

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

Every ZIP code in Fairfax County, with figures

ZIP codes in Fairfax County
ZIP City Type Population Median income Median home
20120 Centreville , VA Standard 42,896 $152,563 $648,700
20121 Centreville , VA Standard 27,788 $129,947 $520,200
20122 Centreville , VA No street area — — —
20124 Clifton , VA Standard 14,375 $221,060 $884,800
20151 Chantilly , VA Standard 22,610 $158,271 $676,800
20153 Chantilly , VA No street area — — —
20170 Herndon , VA Standard 43,866 $159,466 $647,200
20171 Herndon , VA Standard 51,286 $171,372 $797,200
20172 Herndon , VA No street area — — —
20190 Reston , VA Standard 22,012 $134,746 $581,400
20191 Reston , VA Standard 31,011 $151,185 $641,800
20192 Herndon , VA No street area — — —
20194 Reston , VA Standard 12,275 $170,988 $827,100
20195 Reston , VA No street area — — —
20196 Reston , VA No street area — — —
22003 Annandale , VA Standard 57,755 $138,794 $732,400
22009 Burke , VA No street area — — —
22015 Burke , VA Standard 44,647 $172,563 $696,500
22027 Dunn Loring , VA Standard 1,939 $250,000+ $1,097,500
22030 Fairfax , VA Standard 61,332 $139,831 $740,400
22031 Fairfax , VA Standard 37,276 $134,577 $723,600
22032 Fairfax , VA Standard 29,240 $178,394 $799,200
22033 Fairfax , VA Standard 39,526 $143,454 $648,800
22034 Fairfax , VA No street area — — —
22035 Fairfax , VA Standard 0 — —
22036 Fairfax , VA No street area — — —
22037 Fairfax , VA No street area — — —
22039 Fairfax Station , VA Standard 19,626 $250,000+ $1,021,500
22041 Falls Church , VA Standard 29,183 $92,636 $452,300
22042 Falls Church , VA Standard 35,483 $138,255 $715,800
22043 Falls Church , VA Standard 25,750 $145,881 $881,600
22044 Falls Church , VA Standard 13,996 $101,034 $775,600
22060 Fort Belvoir , VA Standard 10,641 $105,605 $764,000
22066 Great Falls , VA Standard 17,185 $250,000+ $1,310,200
22067 Greenway , VA No street area — — —
22079 Lorton , VA Standard 35,284 $148,134 $637,600
22081 Merrifield , VA No street area — — —
22082 Merrifield , VA No street area — — —
22095 Herndon , VA No street area — — —
22096 Reston , VA No street area — — —
22101 Mc Lean , VA Standard 30,953 $250,000+ $1,449,900
22102 Mc Lean , VA Standard 29,184 $153,949 $955,500
22103 West Mclean , VA No street area — — —
22106 Mc Lean , VA No street area — — —
22107 Mc Lean , VA No street area — — —
22108 Mc Lean , VA No street area — — —
22109 Mc Lean , VA No street area — — —
22116 Merrifield , VA No street area — — —
22118 Merrifield , VA No street area — — —
22119 Merrifield , VA No street area — — —
22121 Mount Vernon , VA No street area — — —
22122 Newington , VA No street area — — —
22124 Oakton , VA Standard 18,091 $218,380 $998,400
22150 Springfield , VA Standard 27,955 $123,114 $635,900
22151 Springfield , VA Standard 17,017 $156,015 $655,800
22152 Springfield , VA Standard 28,814 $165,906 $648,200
22153 Springfield , VA Standard 32,664 $174,228 $693,600
22156 Springfield , VA No street area — — —
22158 Springfield , VA No street area — — —
22159 Springfield , VA No street area — — —
22160 Springfield , VA No street area — — —
22161 Springfield , VA No street area — — —
22180 Vienna , VA Standard 26,568 $177,111 $941,400
22181 Vienna , VA Standard 15,760 $211,911 $998,300
22182 Vienna , VA Standard 27,783 $205,108 $1,125,900
22183 Vienna , VA No street area — — —
22185 Vienna , VA No street area — — —
22199 Lorton , VA No street area — — —
22303 Alexandria , VA Standard 16,922 $103,656 $552,800
22306 Alexandria , VA Standard 30,602 $97,132 $594,000
22307 Alexandria , VA Standard 10,343 $141,667 $778,900
22308 Alexandria , VA Standard 14,090 $212,545 $914,400
22309 Alexandria , VA Standard 34,316 $107,376 $567,200
22310 Alexandria , VA Standard 28,136 $166,061 $659,700
22312 Alexandria , VA Standard 26,768 $109,272 $604,200
22315 Alexandria , VA Standard 30,404 $159,805 $618,100

Cite this page

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

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