Zip Area Code

Boulder, Montana

Boulder, Montana, in Jefferson County, has ZIP code 59632 and area code 406.

ZIP code
59632
Area code
406
State
Montana
Time zone
Mountain Time
Coordinates
46.2306, -112.1138

ZIP codes in Boulder

ZIP codePost officeCountyArea codes
59632BoulderJefferson County406

Area code for Boulder

  • Area code 406

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

Time zone

Boulder is in the Mountain Time zone.

Towns near Boulder