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Margaret A Szymanski (Postmaster)
margaret.a.szymanski@usps.gov
644 County Rd E
Grand Marsh, WI 53936
Grand Marsh, WI 53936
The Grand Marsh Post Office is located in the state of Wisconsin within Adams County. This location serves 1,610 Grand Marsh residents with a median income of $43,380. It's estimated that approximately 2,570 packages pass through this post office each year.