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 48162 Monroe Monroe County 734
MI 48164 New Boston Wayne County 734
MI 48165 New Hudson Oakland County 248, 810, 947
MI 48166 Newport Monroe County 734
MI 48167 Northville Oakland County 248, 947
MI 48168 Northville Wayne County 248, 734, 947
MI 48169 Pinckney Livingston County 517, 734, 810
MI 48170 Plymouth Wayne County 248, 734, 947
MI 48173 Rockwood Wayne County 734
MI 48174 Romulus 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.