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 83213 Arco Butte County 208, 986
ID 83214 Arimo Bannock County 208, 986
ID 83215 Atomic City Bingham County 208, 986
ID 83217 Bancroft Caribou County 208, 986
ID 83218 Basalt Bingham County 208, 986
ID 83220 Bern Bear Lake County 208, 986
ID 83221 Blackfoot Bingham County 208, 986
ID 83223 Bloomington Bear Lake County 208, 986
ID 83226 Challis Custer County 208, 986
ID 83227 Clayton Custer 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.