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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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Gem County ZIP Codes

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

County State ZIP Code City Area Codes
Gem County ID 83617 Emmett 208, 986
Gem County ID 83636 Letha 208, 986
Gem County ID 83657 Ola 208, 986
Gem County ID 83670 Sweet 208, 986

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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.