Jamie K Rasmussen (Postmaster)
jamie.k.rasmussen@usps.gov
20 S Main St Ste 18
Janesville, WI 53545
Janesville, WI 53545
The Downtown Janesville Post Office is located in the state of Wisconsin within Rock County. This location serves 23,117 Janesville residents with a median income of $48,444. It's estimated that approximately 36,897 packages pass through this post office each year.