Zip Area Code

Gloucester, Massachusetts

Gloucester, Massachusetts, in Essex County, has ZIP codes 01930 and 01931 and area code 978, with 351 as an overlay.

ZIP codes
01930, 01931
Area codes
978, 351
Time zone
Eastern Time
Coordinates
42.6184, -70.6671

ZIP codes in Gloucester

ZIP codePost officeCountyArea codes
01930GloucesterEssex County978, 351
01931*GloucesterEssex County978, 351

* No mapped delivery area: P.O. boxes or a single organization. Area codes are those of the nearest ZIP code area.

Area codes for Gloucester

  • Area code 978

    In service since September 1, 1997. Shares its area with 351. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

  • Area code 351

    In service since May 2, 2001. Shares its area with 978. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

Area codes here are matched from telephone rate centers, so a place near a boundary can have local numbers from either side of it.

Time zone

Gloucester is in the Eastern Time zone.

Towns near Gloucester