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
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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 49456 Spring Lake Ottawa County 231, 616
MI 49457 Twin Lake Muskegon County 231
MI 49458 Walhalla Mason County 231
MI 49459 Walkerville Oceana County 231
MI 49460 West Olive Ottawa County 616
MI 49461 Whitehall Muskegon County 231
MI 49463 Sylvan Beach Muskegon County 231
MI 49464 Zeeland Ottawa County 269, 616
MI 49468 Grandville Kent County 616
MI 49501 Grand Rapids Kent County 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.