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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.

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Sanilac County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Sanilac County.

County State ZIP Code City Area Codes
Sanilac County MI 48401 Applegate 810
Sanilac County MI 48410 Argyle 810
Sanilac County MI 48416 Brown City 810, 989
Sanilac County MI 48419 Carsonville 810
Sanilac County MI 48422 Croswell 810
Sanilac County MI 48426 Decker 989
Sanilac County MI 48427 Deckerville 810, 989
Sanilac County MI 48434 Forestville 989
Sanilac County MI 48450 Lexington 810
Sanilac County MI 48453 Marlette 810, 989
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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.