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 83201 Pocatello Bannock County 208, 986
ID 83202 Pocatello Bannock County 208, 986
ID 83203 Fort Hall Bingham County 208, 986
ID 83204 Pocatello Bannock County 208, 986
ID 83205 Pocatello Bannock County 208
ID 83206 Pocatello Bannock County 208
ID 83209 Pocatello Bannock County 208, 986
ID 83210 Aberdeen Bingham County 208, 986
ID 83211 American Falls Power County 208, 986
ID 83212 Arbon Power County 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.