Fairfax County, located in the state of Virginia, contains a range of ZIP codes that are essential for mail delivery, demographics, mapping, and regional planning. Below is a complete list of ZIP codes associated with this county.

These ZIP codes help identify specific areas and communities within the county, ranging from small towns and villages to broader rural stretches. Whether you’re moving to Fairfax County, setting up a business, or analyzing demographic trends, understanding ZIP code distribution is an essential part of the process.

Zip code
20171
22151
22180
22122
22181
22315
22027
22106
20195
22037
22158
20192
20124
20120
20164
20191
22003
22030
22043
22102
22308
22121
22035
22081
22082
22044
22183
22312
22159
22108
20041
22161
20190
20194
22041
22101
22124
22150
22204
22302
22304
22067
20152
20170
20165
22046
22066
22152
22079
22116
22160
20070
20206
20598
20122
22009
22039
22303
22306
22213
22103
22185
20121
20153
22015
22031
22042
22153
22060
22206
22207
22310
22199
22107
20151
22033
22032
22182
22307
22311
22309
20172
22109
20069

To know more about Fairfax County, click the button below:

Fairfax County Information

Use this tool to find your area details by using zip code.

ZIP Code to County

Note: Some ZIP codes may span across county borders and may be listed under more than one county. This is common in rural or low-population areas where ZIP code regions are broader.

Source: Data compiled from official county records, USPS ZIP code data, and the United States Census Bureau.

Frequently Asked Questions

How many ZIP codes are in Fairfax County County?

There are approximately 84 ZIP codes in this county. Check the table above for the complete list.

Do ZIP codes in Fairfax County overlap with other counties?

Yes, some ZIP codes may span more than one county. This is especially common in less populated or rural areas.