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 49320 Chippewa Lake Mecosta County 231
MI 49321 Comstock Park Kent County 616
MI 49322 Coral Montcalm County 231, 616, 989
MI 49323 Dorr Allegan County 269, 616
MI 49325 Freeport Barry County 269, 616
MI 49326 Gowen Kent County 616
MI 49327 Grant Newaygo County 231, 616
MI 49328 Hopkins Allegan County 269, 616
MI 49329 Howard City Montcalm County 231, 616, 989
MI 49330 Kent City Kent County 231, 616
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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.