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 99648 Perryville Lake and Peninsula Borough 907
AK 99649 Pilot Point Lake and Peninsula Borough 907
AK 99650 Pilot Station Kusilvak Census Area 907
AK 99651 Platinum Bethel Census Area 907
AK 99652 Big Lake Matanuska-Susitna Borough 907
AK 99653 Port Alsworth Lake and Peninsula Borough 907
AK 99654 Wasilla Matanuska-Susitna Borough 907
AK 99655 Quinhagak Bethel Census Area 907
AK 99656 Red Devil Bethel Census Area 907
AK 99657 Russian Mission Kusilvak 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.