There are
323 mi
from St Paul, MN to Wauwatosa, WI
That's the driving distance. It would take 5 hours 53 mins to go from St Paul, Minnesota to Wauwatosa, Wisconsin.
The flight distance (direct flight from St Paul, MN to Wauwatosa, WI) is 284.73 mi.
323 mi = 519.32 kms