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 83825 Dover Bonner County 208, 986
ID 83826 Eastport Boundary County 208, 236, 250, 672, 778, 986
ID 83827 Elk River Clearwater County 208, 986
ID 83830 Fernwood Benewah County 208, 986
ID 83832 Genesee Latah County 208, 509, 986
ID 83833 Harrison Kootenai County 208, 986
ID 83834 Harvard Latah County 208, 986
ID 83835 Hayden Kootenai County 208, 986
ID 83836 Hope Bonner County 208, 986
ID 83837 Kellogg Shoshone 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.