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 48124 Dearborn Wayne County 313
MI 48125 Dearborn Heights Wayne County 313
MI 48126 Dearborn Wayne County 313
MI 48127 Dearborn Heights Wayne County 313, 734
MI 48128 Dearborn Wayne County 313
MI 48130 Dexter Washtenaw County 734
MI 48131 Dundee Monroe County 734
MI 48133 Erie Monroe County 419, 567, 734
MI 48134 Flat Rock Wayne County 734
MI 48135 Garden City 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.