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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.

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Judith Basin County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Judith Basin County.

County State ZIP Code City Area Codes
Judith Basin County MT 59418 Buffalo 406
Judith Basin County MT 59447 Geyser 406
Judith Basin County MT 59452 Hobson 406
Judith Basin County MT 59462 Moccasin 406
Judith Basin County MT 59469 Raynesford 406
Judith Basin County MT 59479 Stanford 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.