USA Zip Code Finder

Montana ZIP Codes

Montana ZIP codes cover major cities like Billings, Missoula, Great Falls, and wide rural areas. ZIP codes starting with 590–599 are unique to Montana.

Quick Facts

  • Total ZIP Codes: 506
  • Largest City: Billings
  • ZIP Range: 59001 – 59937
  • Area Codes: 406

Population Highlights

  • Billings Metro: ~0.18M
  • Missoula Metro: ~0.12M
  • Great Falls Metro: ~0.08M

Major Counties

  • Yellowstone: 59101–59108
  • Missoula: 59801–59812
  • Lewis & Clark: 59601–59645

Regional ZIP Distribution

  • Eastern MT: 59001–59367
  • Central MT: 59401–59645
  • Western MT: 59701–59937

Area Codes

  • 406: Entire state

Transportation & Landmarks

  • Billings Logan International Airport
  • Major Highways: I-90, I-15
  • Landmarks: Glacier National Park, Yellowstone

Notable ZIP Codes

Some ZIP codes in Montana are especially significant. 59101 covers downtown Billings, 59801 covers downtown Missoula, and 59401 covers Great Falls. Rural ZIP codes include 59301 and 59901.

Montana ZIP Code Directory

ZIP Code â–² Common City â–²

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