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
All states and U.S. territories
Maps and coordinates
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 83799 Boise Ada County 208
ID 83801 Athol Kootenai County 208, 986
ID 83802 Avery Shoshone County 208, 406, 986
ID 83803 Bayview Kootenai County 208, 986
ID 83804 Blanchard Bonner County 208, 509, 986
ID 83805 Bonners Ferry Boundary County 208, 236, 250, 406, 509, 672, 778, 986
ID 83806 Bovill Latah County 208, 986
ID 83808 Calder Shoshone County 208, 986
ID 83809 Careywood Bonner County 208, 986
ID 83810 Cataldo Kootenai County 208, 986
Page 27 of 33

Geographic Map of Idaho

Postal context

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.