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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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Ketchikan Gateway Borough ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Ketchikan Gateway Borough.

County State ZIP Code City Area Codes
Ketchikan Gateway Borough AK 99901 Ketchikan 907
Ketchikan Gateway Borough AK 99928 Ward Cove 907

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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.