Zip Area Code

Loudon, New Hampshire

Loudon, New Hampshire, in Merrimack County, has ZIP code 03307 and area code 603.

ZIP code
03307
Area code
603
Time zone
Eastern Time
Coordinates
43.3193, -71.4670

ZIP codes in Loudon

ZIP codePost officeCountyArea codes
03307LoudonMerrimack County603

Area code for Loudon

  • Area code 603

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

Time zone

Loudon is in the Eastern Time zone.

Towns near Loudon