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.

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Hawaii County ZIP Codes

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

County State ZIP Code City Area Codes
Hawaii County HI 96704 Captain Cook 808
Hawaii County HI 96710 Hakalau 808
Hawaii County HI 96718 Hawaii National Park 808
Hawaii County HI 96719 Hawi 808
Hawaii County HI 96720 Hilo 808
Hawaii County HI 96721 Hilo 808
Hawaii County HI 96725 Holualoa 808
Hawaii County HI 96726 Honaunau 808
Hawaii County HI 96727 Honokaa 808
Hawaii County HI 96728 Honomu 808
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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.