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 48230 Grosse Pointe Wayne County 313
MI 48231 Detroit Wayne County 313
MI 48232 Detroit Wayne County 313
MI 48233 Detroit Wayne County 313
MI 48234 Detroit Wayne County 313, 586
MI 48235 Detroit Wayne County 248, 313, 947
MI 48236 Grosse Pointe Wayne County 313, 586
MI 48237 Oak Park Oakland County 248, 947
MI 48238 Detroit Wayne County 313
MI 48239 Redford 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.