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
All states and U.S. territories
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State directory

Alaska ZIP Codes

Complete postal directory, details, and geographic map for the State of Alaska.

State ZIP Code City County Area Codes
AK 99780 Tok Southeast Fairbanks Census Area 867, 907
AK 99781 Venetie Yukon-Koyukuk Census Area 907
AK 99782 Wainwright North Slope Borough 907
AK 99783 Wales Nome Census Area 907
AK 99784 White Mountain Nome Census Area 907
AK 99785 Brevig Mission Nome Census Area 907
AK 99786 Ambler Northwest Arctic Borough 907
AK 99788 Chalkyitsik Yukon-Koyukuk Census Area 907
AK 99789 Nuiqsut North Slope Borough 907
AK 99790 Fairbanks Yukon-Koyukuk Census Area 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.