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 48220 Ferndale Oakland County 248, 313, 947
MI 48221 Detroit Wayne County 248, 313, 947
MI 48222 Detroit Wayne County 313
MI 48223 Detroit Wayne County 313
MI 48224 Detroit Wayne County 313
MI 48225 Harper Woods Wayne County 313, 586
MI 48226 Detroit Wayne County 313
MI 48227 Detroit Wayne County 313
MI 48228 Detroit Wayne County 313
MI 48229 Ecorse Wayne County 226, 313, 519, 548, 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.