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 99714 Salcha Fairbanks North Star Borough 907
AK 99716 Two Rivers Fairbanks North Star Borough 907
AK 99720 Allakaket Yukon-Koyukuk Census Area 907
AK 99721 Anaktuvuk Pass North Slope Borough 907
AK 99722 Arctic Village Yukon-Koyukuk Census Area 907
AK 99723 Barrow North Slope Borough 907
AK 99724 Beaver Yukon-Koyukuk Census Area 907
AK 99725 Ester Fairbanks North Star Borough 907
AK 99726 Bettles Field Yukon-Koyukuk Census Area 907
AK 99727 Buckland Northwest Arctic 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.