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

Idaho ZIP Codes

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

State ZIP Code City County Area Codes
ID 83277 Springfield Bingham County 208, 986
ID 83278 Stanley Custer County 208, 986
ID 83281 Swanlake Bannock County 208, 986
ID 83283 Thatcher Franklin County 208, 986
ID 83285 Wayan Caribou County 208, 986
ID 83286 Weston Franklin County 208, 435, 986
ID 83287 Fish Haven Bear Lake County 208, 435, 986
ID 83301 Twin Falls Twin Falls County 208, 986
ID 83302 Rogerson Twin Falls County 208, 775, 986
ID 83303 Twin Falls Twin Falls County 208
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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.