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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.

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Ada County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Ada County.

County State ZIP Code City Area Codes
Ada County ID 83616 Eagle 208, 986
Ada County ID 83634 Kuna 208, 986
Ada County ID 83642 Meridian 208, 986
Ada County ID 83646 Meridian 208, 986
Ada County ID 83669 Star 208, 986
Ada County ID 83680 Meridian 208
Ada County ID 83701 Boise 208
Ada County ID 83702 Boise 208, 986
Ada County ID 83703 Boise 208, 986
Ada County ID 83704 Boise 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.