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 83642 Meridian Ada County 208, 986
ID 83643 Mesa Adams County 208, 986
ID 83644 Middleton Canyon County 208, 986
ID 83645 Midvale Washington County 208, 986
ID 83646 Meridian Ada County 208, 986
ID 83647 Mountain Home Elmore County 208, 986
ID 83648 Mountain Home AFB Elmore County 208, 986
ID 83650 Murphy Owyhee County 208, 458, 541, 986
ID 83651 Nampa Canyon County 208, 986
ID 83652 Nampa Canyon 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.