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 49252 Litchfield Hillsdale County 517
MI 49253 Manitou Beach Lenawee County 517
MI 49254 Michigan Center Jackson County 517
MI 49255 Montgomery Branch County 260, 419, 517, 567
MI 49256 Morenci Lenawee County 419, 517, 567
MI 49257 Moscow Hillsdale County 517
MI 49258 Mosherville Hillsdale County 517
MI 49259 Munith Jackson County 517
MI 49261 Napoleon Jackson County 517
MI 49262 North Adams Hillsdale County 517
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Geographic Map of Michigan

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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.