There are 18 zip codes in Sanilac County, Michigan. The most populated is 48422, located in Croswell. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
484226,005Croswell
484715,613Sandusky
484165,291Brown City
484534,991Marlette
484504,503Lexington
484272,899Deckerville
484752,613Ubly
484192,196Carsonville
484661,501Peck
484721,403Snover
484691,295Port Sanilac
484011,289Applegate
484261,280Decker
484541,162Melvin
48456728Minden City
48465553Palms
48434132Forestville
48410114Argyle

Zip Codes in Sanilac County, Michigan by Population (2024)