Zip Area Code

Dedham, Massachusetts

Dedham, Massachusetts, in Norfolk County, has ZIP codes 02026 and 02027 and area code 781, with 339 as an overlay.

ZIP codes
02026, 02027
Area codes
781, 339
Time zone
Eastern Time
Coordinates
42.2118, -71.1265

ZIP codes in Dedham

ZIP codePost officeCountyArea codes
02026DedhamNorfolk County781, 339
02027*DedhamNorfolk County781, 339

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

Area codes for Dedham

  • Area code 781

    In service since September 1, 1997. Shares its area with 339. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

  • Area code 339

    In service since May 2, 2001. Shares its area with 781. 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

Dedham is in the Eastern Time zone.

Towns near Dedham