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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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	83704	Boise	Ada County	`208, 986`
ID	83705	Boise	Ada County	`208, 986`
ID	83706	Boise	Ada County	`208, 986`
ID	83707	Boise	Ada County	`208`
ID	83708	Boise	Ada County	`208`
ID	83709	Boise	Ada County	`208, 986`
ID	83711	Boise	Ada County	`208`
ID	83712	Boise	Ada County	`208, 986`
ID	83713	Boise	Ada County	`208, 986`
ID	83714	Garden City	Ada 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.