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 99703 Fort Wainwright Fairbanks North Star Borough 907
AK 99704 Clear Denali Borough 907
AK 99705 North Pole Fairbanks North Star Borough 907
AK 99706 Fairbanks Southeast Fairbanks Census Area 907
AK 99707 Fairbanks Fairbanks North Star Borough 907
AK 99708 Fairbanks Fairbanks North Star Borough 907
AK 99709 Fairbanks Fairbanks North Star Borough 907
AK 99710 Fairbanks Fairbanks North Star Borough 907
AK 99711 Fairbanks Fairbanks North Star Borough 907
AK 99712 Fairbanks Fairbanks North Star 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.