Maximum discharge along the river is currently at the reporting a streamflow rate of cfs. This is also the highest stage along the Mukwonago River, with a gauge stage of ft at this location. This river is monitored from 1 different streamgauging stations along the Mukwonago River, the highest being situated at an altitude of ft, the .
The Mukwonago River is one of the cleanest and most biologically diverse streams in southeastern Wisconsin. The river is part of the Mukwonago River Watershed which spans 47,500 acres through and around the town of Mukwonago.