Zip Area Code

Carter County, Montana

Carter County, Montana, has 4 towns and 4 ZIP codes, in area code 406.

Towns in Carter County, A to Z

TownZIP codesArea codes
Alzada59311406
Capitol59319406
Ekalaka59324406
Hammond59332406

ZIP codes in Carter County

Area code in Carter County

  • Area code 406

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