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 48885 Sidney Montcalm County 616, 989
MI 48886 Six Lakes Montcalm County 989
MI 48887 Smyrna Ionia County 616
MI 48888 Stanton Montcalm County 616, 989
MI 48889 Sumner Gratiot County 989
MI 48890 Sunfield Eaton County 517
MI 48891 Vestaburg Montcalm County 989
MI 48892 Webberville Ingham County 517
MI 48893 Weidman Isabella County 989
MI 48894 Westphalia Clinton County 517, 989
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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.