Zip Area Code

Washington, New Hampshire

Washington, New Hampshire, in Sullivan County, has ZIP code 03280 and area code 603.

ZIP code
03280
Area code
603
Time zone
Eastern Time
Coordinates
43.1747, -72.0824

ZIP codes in Washington

ZIP codePost officeCountyArea codes
03280WashingtonSullivan County603

Area code for Washington

  • Area code 603

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

Time zone

Washington is in the Eastern Time zone.

Towns near Washington