There are 43 zip codes in Fairfax County, Virginia. The most populated is 22030, located in Fairfax. * 2024 populations estimated based on the latest ACS 5-year data.
Zip Code | Population | City |
|---|---|---|
| 22030 | 61,665 | Fairfax |
| 22003 | 58,872 | Annandale |
| 20171 | 51,081 | Herndon |
| 22015 | 44,959 | Burke |
| 20170 | 43,557 | Herndon |
| 20120 | 43,315 | Centreville |
| 22033 | 38,610 | Fairfax |
| 22079 | 36,857 | Lorton |
| 22309 | 36,265 | Alexandria |
| 22031 | 35,872 | Fairfax |
| 22042 | 34,860 | Falls Church |
| 22306 | 32,842 | Alexandria |
| 22153 | 32,546 | Springfield |
| 22101 | 30,729 | McLean |
| 22152 | 30,155 | Springfield |
| 22310 | 29,788 | Alexandria |
| 20191 | 29,758 | Reston |
| 22032 | 29,510 | Fairfax |
| 22315 | 29,358 | Alexandria |
| 22041 | 29,132 | Falls Church |
| 22102 | 28,356 | McLean |
| 22150 | 27,734 | Springfield |
| 20121 | 27,428 | Centreville |
| 22182 | 26,892 | Vienna |
| 22312 | 26,573 | Alexandria |
| 22180 | 26,179 | Vienna |
| 22043 | 25,843 | Falls Church |
| 20151 | 21,893 | Chantilly |
| 20190 | 21,121 | Reston |
| 22124 | 18,449 | Oakton |
| 22039 | 17,624 | Fairfax Station |
| 22066 | 16,925 | Great Falls |
| 22151 | 16,827 | Springfield |
| 22303 | 16,321 | Alexandria |
| 22181 | 15,698 | Vienna |
| 20124 | 15,117 | Clifton |
| 22044 | 14,042 | Falls Church |
| 22308 | 12,980 | Alexandria |
| 20194 | 12,576 | Reston |
| 22307 | 10,202 | Alexandria |
| 22060 | 9,846 | Fort Belvoir |
| 22027 | 1,974 | Dunn Loring |
| 22035 | 0 | Fairfax |