Gloucester, MA ZIP Codes
Gloucester, Massachusetts has 2 ZIP codes: for street addresses and for PO boxes.
Mail addressed to Gloucester covers nearby places too.
Where the 01930 ZIP code reaches
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01931 has no area on the map: it is a PO box or single-organization ZIP code. Dashed line: Gloucester city limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and place limits (2024).
Check an address in Gloucester
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?
Gloucester PO box and business ZIP codes
| ZIP | Type and post office or station |
|---|---|
| 01930 | street delivery Gloucester |
| 01931 | PO boxes at the Gloucester post office Gloucester |
Gloucester ZIP code questions
What is the main ZIP code for Gloucester?
01930, the ZIP code of the main Gloucester post office at 15 Dale Ave.
Which Gloucester ZIP codes are for PO boxes only?
01931. Mail to it goes to boxes at the post office, not to street addresses.
What county is Gloucester in?
Essex County.
ZIP codes for towns near Gloucester
More towns near Gloucester: Haverhill, Malden, Chelsea, Town of Andover, Everett, Lawrence, Woburn, Medford, Methuen.
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