U.S. postal lookup

U.S. ZIP Codes Database 2026

Search by ZIP code, city, county, or state and find clear postal details with maps, time zones, and area code data.

42,735 verified records
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State directory

Montana ZIP Codes

Complete postal directory, details, and geographic map for the State of Montana.

State ZIP Code City County Area Codes
MT 59752 Three Forks Gallatin County 406
MT 59754 Twin Bridges Madison County 406
MT 59755 Virginia City Madison County 406
MT 59756 Warm Springs Deer Lodge County 406
MT 59758 West Yellowstone Gallatin County 208, 307, 406, 986
MT 59759 Whitehall Jefferson County 406
MT 59760 Willow Creek Gallatin County 406
MT 59761 Wisdom Beaverhead County 208, 406, 986
MT 59762 Wise River Beaverhead County 406
MT 59771 Bozeman Gallatin County 406
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About U.S. ZIP Codes

ZIP codes are a United States Postal Service system introduced in 1963 to make mail routing more accurate and efficient. The standard format uses five digits, while ZIP+4 adds four more digits for a more precise delivery segment.

ZIP codes cover the United States, its territories, military mail routes, and other USPS delivery points. This directory organizes that data for practical lookup by ZIP code, city, county, and state.