Melanie D Wiersma (Postmaster)
melanie.d.wiersma@usps.gov
735 N Margaret St
Markesan, WI 53946
Markesan, WI 53946
The Markesan Post Office is located in the state of Wisconsin within Green Lake County. This location serves 4,386 Markesan residents with a median income of $51,231. It's estimated that approximately 7,001 packages pass through this post office each year.