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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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Blaine County ZIP Codes

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

County State ZIP Code City Area Codes
Blaine County ID 83313 Bellevue 208, 986
Blaine County ID 83320 Carey 208, 986
Blaine County ID 83333 Hailey 208, 986
Blaine County ID 83340 Ketchum 208, 986
Blaine County ID 83348 Picabo 208, 986
Blaine County ID 83353 Sun Valley 208, 986
Blaine County ID 83354 Sun Valley 208, 986
Blaine County MT 59523 Chinook 306, 368, 406, 474, 587, 639
Blaine County MT 59526 Harlem 406
Blaine County MT 59527 Hays 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.