Darrel S Daun (Postmaster)
darrel.s.daun@usps.gov
1816 Wisconsin Ave
New Holstein, WI 53061
New Holstein, WI 53061
The New Holstein Post Office is located in the state of Wisconsin within Calumet County. This location serves 5,196 New Holstein residents with a median income of $47,526. It's estimated that approximately 8,293 packages pass through this post office each year.