Cynthia J Schroeder (Postmaster)
cynthia.j.schroeder@usps.gov
215 E 2nd St
Winthrop, MN 55396
Winthrop, MN 55396
The Winthrop Post Office is located in the state of Minnesota within Sibley County. This location serves 2,252 Winthrop residents with a median income of $47,072. It's estimated that approximately 3,594 packages pass through this post office each year.