Zip Area Code

Haverhill, Massachusetts

Haverhill, Massachusetts, in Essex County, has ZIP codes 01830, 01831, 01832 and 01835 and area code 978, with 351 as an overlay.

ZIP codes
01830, 01831, 01832, 01835
Area codes
978, 351
Time zone
Eastern Time
Coordinates
42.7722, -71.0970

ZIP codes in Haverhill

ZIP codePost officeCountyArea codes
01830HaverhillEssex County978, 351
01831*HaverhillEssex County978, 351
01832HaverhillEssex County978, 351
01835HaverhillEssex 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 Haverhill

  • 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

Haverhill is in the Eastern Time zone.

Towns near Haverhill