Zip Area Code

Valley County, Montana

Valley County, Montana, has 11 towns and 10 ZIP codes, in area code 406.

Towns in Valley County, A to Z

TownZIP codesArea codes
Frazer59225406
Glasgow59230406
Glentana59240406
Hinsdale59241406
Larslan59244406
Nashua59248406
Opheim59250406
Richland59260406
Saint Marie59231406
St. Marienearest59231406
Vandalia59273406

ZIP codes in Valley County

Area code in Valley County

  • Area code 406

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