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 99679 Tuluksak Bethel Census Area 907
AK 99680 Tuntutuliak Bethel Census Area 907
AK 99681 Tununak Bethel Census Area 907
AK 99682 Tyonek Kenai Peninsula Borough 907
AK 99683 Trapper Creek Matanuska-Susitna Borough 907
AK 99684 Unalakleet Nome Census Area 907
AK 99685 Unalaska Aleutians West Census Area 907
AK 99686 Valdez Chugach Census Area 907
AK 99687 Wasilla Matanuska-Susitna Borough 907
AK 99688 Willow Matanuska-Susitna Borough 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.