Zip Area Code

Wilmington, Massachusetts

Wilmington, Massachusetts, in Middlesex County, has ZIP code 01887 and area code 978, with 351 as an overlay.

ZIP code
01887
Area codes
978, 351
Time zone
Eastern Time
Coordinates
42.5581, -71.1723

ZIP codes in Wilmington

ZIP codePost officeCountyArea codes
01887WilmingtonMiddlesex County978, 351

Area codes for Wilmington

  • 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

Wilmington is in the Eastern Time zone.

Towns near Wilmington