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

Michigan ZIP Codes

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

State ZIP Code City County Area Codes
MI 48413 Bad Axe Huron County 989
MI 48414 Bancroft Shiawassee County 517, 810, 989
MI 48415 Birch Run Saginaw County 810, 989
MI 48416 Brown City Sanilac County 810, 989
MI 48417 Burt Saginaw County 810, 989
MI 48418 Byron Shiawassee County 517, 810, 989
MI 48419 Carsonville Sanilac County 810
MI 48420 Clio Genesee County 810, 989
MI 48421 Columbiaville Lapeer County 810
MI 48422 Croswell Sanilac County 810
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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.