Montana City

ZIP Code(s): 59634, 59635; County(s): Jefferson;

Glasgow

ZIP Code(s): 59230; County(s): Valley;

Choteau

ZIP Code(s): 59422; County(s): Teton;

Baker

ZIP Code(s): 59313; County(s): Fallon;

Polson

ZIP Code(s): 59860; County(s): Lake;

Colstrip

ZIP Code(s): 59327, 59323; County(s): Rosebud;

Billings

ZIP Code(s): 59106, 59105, 59102, 59101, 59104, 59107, 59108, 59115, 59116, 59117; County(s): Yellowstone;

Muddy

ZIP Code(s): 59043; County(s): Big Horn;

Churchill

ZIP Code(s): 59741; County(s): Gallatin;

Gardiner

ZIP Code(s): 59030; County(s): Park;

Boulder

ZIP Code(s): 59632; County(s): Jefferson;

East Helena

ZIP Code(s): 59635; County(s): Lewis and Clark;

Shelby

ZIP Code(s): 59474; County(s): Toole;

Plentywood

ZIP Code(s): 59254; County(s): Sheridan;

Poplar

ZIP Code(s): 59255; County(s): Roosevelt;

Deer Lodge

ZIP Code(s): 59722; County(s): Powell;

Somers

ZIP Code(s): 59932; County(s): Flathead;