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 48054 East China St. Clair County 226, 519, 548, 586, 810
MI 48059 Fort Gratiot St. Clair County 810
MI 48060 Port Huron St. Clair County 226, 519, 548, 810
MI 48061 Port Huron St. Clair County 810
MI 48062 Richmond Macomb County 586, 810
MI 48063 Columbus St. Clair County 586, 810
MI 48064 Casco St. Clair County 586, 810
MI 48065 Romeo Macomb County 248, 586, 810, 947
MI 48066 Roseville Macomb County 586
MI 48067 Royal Oak Oakland County 248, 947
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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.