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

Michigan ZIP Codes

Complete postal directory, details, and geographic map for the State of Michigan.

State ZIP Code City County Area Codes
MI 49912 Bruce Crossing Ontonagon County 906
MI 49913 Calumet Houghton County 906
MI 49915 Caspian Iron County 906
MI 49916 Chassell Houghton County 906
MI 49917 Copper City Houghton County 906
MI 49918 Copper Harbor Keweenaw County 906
MI 49919 Covington Baraga County 906
MI 49920 Crystal Falls Iron County 534, 715, 906
MI 49921 Dodgeville Houghton County 906
MI 49922 Dollar Bay Houghton County 906
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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.