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 99522 Anchorage Municipality of Anchorage 907
AK 99523 Anchorage Municipality of Anchorage 907
AK 99524 Anchorage Municipality of Anchorage 907
AK 99529 Anchorage Municipality of Anchorage 907
AK 99530 Anchorage Anchorage Municipality 907
AK 99540 Indian Anchorage Municipality 907
AK 99545 Kongiganak Bethel Census Area 907
AK 99546 Adak Aleutians West Census Area 907
AK 99547 Atka Aleutians West Census Area 907
AK 99548 Chignik Lake Lake and Peninsula 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.