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 49837 Gladstone Delta County 906
MI 49838 Gould City Mackinac County 906
MI 49839 Grand Marais Alger County 906
MI 49840 Gulliver Schoolcraft County 906
MI 49841 Gwinn Marquette County 906
MI 49845 Harris Menominee County 906
MI 49847 Hermansville Menominee County 906
MI 49848 Ingalls Menominee County 906
MI 49849 Ishpeming Marquette County 906
MI 49852 Loretto Dickinson 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.