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 48091 Warren Macomb County 248, 313, 586, 947
MI 48092 Warren Macomb County 248, 586, 947
MI 48093 Warren Macomb County 586
MI 48094 Washington Macomb County 248, 586, 947
MI 48095 Washington Macomb County 248, 586, 947
MI 48096 Ray Macomb County 586
MI 48097 Yale St. Clair County 810
MI 48098 Troy Oakland County 248, 947
MI 48099 Troy Oakland County 248
MI 48101 Allen Park Wayne County 313, 734
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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.