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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Idaho ZIP Codes

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

State ZIP Code City County Area Codes
ID 83454 Ucon Bonneville County 208, 986
ID 83455 Victor Teton County 208, 307, 986
ID 83460 Rexburg Madison County 208, 986
ID 83462 Carmen Lemhi County 208, 406, 986
ID 83463 Gibbonsville Lemhi County 208, 406, 986
ID 83464 Leadore Lemhi County 208, 406, 986
ID 83465 Lemhi Lemhi County 208, 406, 986
ID 83466 North Fork Lemhi County 208, 406, 986
ID 83467 Salmon Lemhi County 208, 406, 986
ID 83468 Tendoy Lemhi County 208, 406, 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.