Zip Area Code

Portsmouth, New Hampshire

Portsmouth, New Hampshire, in Rockingham County, has ZIP codes 03801, 03802, 03803 and 03804 and area code 603.

ZIP codes
03801, 03802, 03803, 03804
Area code
603
Time zone
Eastern Time
Coordinates
43.0721, -70.7733

ZIP codes in Portsmouth

ZIP codePost officeCountyArea codes
03801PortsmouthRockingham County603
03802*PortsmouthRockingham County603
03803*PortsmouthRockingham County603
03804*PortsmouthRockingham County603

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

Area code for Portsmouth

  • Area code 603

    In service since 1947. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

Time zone

Portsmouth is in the Eastern Time zone.

Towns near Portsmouth