Fairfield, CT ZIP Codes
Fairfield, Connecticut has 4 ZIP codes: 4 for street addresses (, , and ).
Your street decides which one you use.
Which Fairfield ZIP code is my address in?
Street ranges from the Census Bureau, 2026. PO box and organization ZIP codes are not found by street. A new street may be missing: address not found?
Fairfield ZIP code map
Tap or point to an area to see its ZIP code.Full-size map
06828 has no area on the Census map. Dashed line: Fairfield town limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and county subdivision limits (2024).
All Fairfield ZIP codes by type
| ZIP | Type and post office or station |
|---|---|
| 06824 | street delivery Fairfield |
| 06825 | street delivery Commerce |
| 06828 | street delivery Fairfield |
| 06890 | street delivery; mail may be addressed to Southport Southport |
Why your mail may say Fairfield when you live outside it
Fairfield ZIP codes also cover Murray, Southport and Mill Plain, so a letter addressed to Fairfield can go to a home outside the town limits.
A ZIP code does not set your city, school district or tax. Greater Bridgeport Planning Region property records show which city you are in.
Fairfield ZIP code questions
What is the main ZIP code for Fairfield?
06824, the ZIP code of the main Fairfield post office at 1300 Post Rd Suite 5.
What county is Fairfield in?
Greater Bridgeport Planning Region.
ZIP codes for towns near Fairfield
More towns near Fairfield: Stamford, West Haven, Town of Smithtown, Danbury, New Haven, Town of Huntington, Town of Greenwich, Commack, Centereach.
Sources and last checked
USPS ZIP Locale Detail (October 1, 2026), GeoNames (CC BY 4.0), U.S. Census Bureau, HUD-USPS crosswalk.
Checked October 20, 2026. Sources · How we build our lists · Corrections