Westfield, MA ZIP Codes
Westfield, Massachusetts has 2 ZIP codes: for street addresses and for PO boxes.
Mail addressed to Westfield covers nearby places too.
Where the 01085 ZIP code reaches
Tap or point to an area to see its ZIP code.Full-size map
01086 has no area on the map: it is a PO box or single-organization ZIP code. Dashed line: Westfield city limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and place limits (2024).
Check an address in Westfield
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?
Westfield PO box and business ZIP codes
| ZIP | Type and post office or station |
|---|---|
| 01085 | street delivery Westfield |
| 01086 | PO boxes at the Westfield post office Westfield |
Why your mail may say Westfield when you live outside it
Westfield ZIP codes also cover Montgomery, so a letter addressed to Westfield can go to a home outside the city limits.
A ZIP code does not set your city, school district or tax. Hampden County property records show which city you are in.
Westfield ZIP code questions
What is the main ZIP code for Westfield?
01085, the ZIP code of the main Westfield post office at 8 W Silver St.
Which Westfield ZIP codes are for PO boxes only?
01086. Mail to it goes to boxes at the post office, not to street addresses.
What county is Westfield in?
Hampden County.
ZIP codes for towns near Westfield
More towns near Westfield: West Hartford, Vernon, Hartford, East Hartford, Manchester, Town of Manchester, Torrington, Newington, New Britain.
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