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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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Boise County ZIP Codes

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

County State ZIP Code City Area Codes
Boise County ID 83602 Banks 208, 986
Boise County ID 83622 Garden Valley 208, 986
Boise County ID 83629 Horseshoe Bend 208, 986
Boise County ID 83631 Idaho City 208, 986
Boise County ID 83637 Lowman 208, 986
Boise County ID 83666 Placerville 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.