Fairfax County, Virginia
43 ZIP codes · 391.02 sq mi of land · FIPS 51059
| Population | 1,147,837 |
|---|---|
| State | Virginia |
| FIPS code | 51059 |
| Time zone | Eastern |
| Land area | 391.02 sq mi |
| Center (lat, long) | 38.8295, -77.2733 |
Area codes in this area
These are the area codes that most often serve Fairfax County (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.
Cities and towns (largest first)
Alexandria · 156,976Centreville · 71,706Reston · 64,414Burke · 44,029Annandale · 41,705Oakton · 36,528Springfield · 31,154Fairfax · 25,026Herndon · 24,672Chantilly · 24,036Lorton · 20,991Vienna · 16,412Great Falls · 15,228Falls Church · 14,710CliftonDunn LoringFairfax StationFort BelvoirMc Lean
ZIP codes in Fairfax County
20120 Centreville20121 Centreville20124 Clifton20151 Chantilly20170 Herndon20171 Herndon20190 Reston20191 Reston20194 Reston22003 Annandale22015 Burke22027 Dunn Loring22030 Fairfax22031 Fairfax22032 Fairfax22033 Fairfax22035 Fairfax22039 Fairfax Station22041 Falls Church22042 Falls Church22043 Falls Church22044 Falls Church22060 Fort Belvoir22066 Great Falls22079 Lorton22101 Mc Lean22102 Mc Lean22124 Oakton22150 Springfield22151 Springfield22152 Springfield22153 Springfield22180 Vienna22181 Vienna22182 Vienna22303 Alexandria22306 Alexandria22307 Alexandria22308 Alexandria22309 Alexandria22310 Alexandria22312 Alexandria22315 Alexandria
Population: U.S. Census Bureau, ACS 5-year estimates, 2024.