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

Alaska ZIP Codes

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

State ZIP Code City County Area Codes
AK 99791 Atqasuk North Slope Borough 907
AK 99801 Juneau Juneau City and Borough 236, 250, 672, 778, 907
AK 99802 Juneau City and Borough of Juneau 907
AK 99803 Juneau City and Borough of Juneau 907
AK 99811 Juneau City and Borough of Juneau 907
AK 99812 Juneau City and Borough of Juneau 907
AK 99820 Angoon Hoonah-Angoon Census Area 907
AK 99821 Auke Bay City and Borough of Juneau 907
AK 99824 Douglas Juneau City and Borough 907
AK 99825 Elfin Cove Hoonah-Angoon 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.