Susan J Schumacher (Postmaster)
susan.j.schumacher@usps.gov
101 East St
Potosi, WI 53820
Potosi, WI 53820
The Potosi Post Office is located in the state of Wisconsin within Grant County. This location serves 2,532 Potosi residents with a median income of $53,884. It's estimated that approximately 4,041 packages pass through this post office each year.