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 49024 Portage Kalamazoo County 269
MI 49026 Bloomingdale Van Buren County 269
MI 49027 Breedsville Van Buren County 269
MI 49028 Bronson Branch County 260, 269, 517
MI 49029 Burlington Calhoun County 269, 517
MI 49030 Burr Oak St. Joseph County 260, 269, 517
MI 49031 Cassopolis Cass County 269
MI 49032 Centreville St. Joseph County 269
MI 49033 Ceresco Calhoun County 269
MI 49034 Climax Kalamazoo County 269
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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.