The City of Fairfax, colloquially known as Fairfax City, Downtown Fairfax, Old Town Fairfax, Fairfax Courthouse, or simply Fairfax, is an independent city in the Commonwealth of Virginia in the United States. As of the 2010 census the population was 22,565, which had risen to an estimated 24,019 as of 2019.

How do I find a postal code?

USPS.com. To find a zip code with USPS.com, you need to fill in the fields with your USA street address, city, and state. Then click Find and you'll get your postal code. There is also a tab to get zip code for a company.

How many zip codes are in Fairfax?

Fairfax County, Virginia: 43 Zip Codes.