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 48042 Macomb Macomb County 586
MI 48043 Mount Clemens Macomb County 586
MI 48044 Macomb Macomb County 586
MI 48045 Harrison Township Macomb County 586
MI 48046 Mount Clemens Macomb County 586
MI 48047 New Baltimore Macomb County 586
MI 48048 New Haven Macomb County 586
MI 48049 North Street St. Clair County 810
MI 48050 New Haven Macomb County 586
MI 48051 New Baltimore Macomb County 586
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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.