Stamford, CT ZIP Codes
Stamford, Connecticut has 14 ZIP codes: 7 for street addresses (, , , , , and 1 more), 3 for PO boxes and 4 for single organizations.
Your street decides which one you use.
Which Stamford 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?
Stamford ZIP code map
Tap or point to an area to see its ZIP code.Full-size map
PO box and single-organization ZIP codes have no area on the map. Dashed line: Stamford city limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and place limits (2024).
All Stamford ZIP codes by type
| ZIP | Type and post office or station |
|---|---|
| 06901 | street delivery West Ave Carrier Unit |
| 06902 | street delivery West Ave Carrier Unit |
| 06903 | street delivery Stamford Sorting and Delivery Center |
| 06904 | PO boxes at the Summer Atlantic post office Summer Atlantic |
| 06905 | street delivery Bulls Head |
| 06906 | street delivery Glenbrook |
| 06907 | street delivery Stamford Sorting and Delivery Center |
| 06910 | street delivery Stamford |
| 06911 | PO boxes at the West Ave post office West Ave |
| 06912 | PO boxes at the Stamford Sorting and Delivery Center post office Stamford Sorting and Delivery Center |
| 06913 | one organization West Ave |
| 06914 | one organization West Ave |
| 06926 | one organization Stamford Sorting and Delivery Center |
| 06927 | one organization Stamford |
ZIP codes from nearby towns that reach into Stamford
- 06831, mailing town Greenwich, covers 4 percent of Stamford
Why your mail may say Stamford when you live outside it
A letter addressed to Stamford can go to a home outside the city limits, because ZIP areas follow delivery routes, not town lines.
The reverse happens too: parts of Stamford use 06831, which mails under a neighboring town's name.
A ZIP code does not set your city, school district or tax. Western Connecticut Planning Region property records show which city you are in.
Stamford ZIP code questions
What is the main ZIP code for Stamford?
06910, the ZIP code of the main Stamford post office at 427 West Ave.
Which Stamford ZIP codes are for PO boxes only?
06904, 06911 and 06912. Mail to them goes to boxes at the post office, not to street addresses.
What county is Stamford in?
Western Connecticut Planning Region.
ZIP codes for towns near Stamford
More towns near Stamford: Town of Mamaroneck, Fairfield, Greenburgh, Town of Huntington, New Rochelle, Town of Eastchester, Town of Ossining, Huntington Station, Mount Vernon.
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