There are
451 mi
from Sioux City, IA to Waupun, WI
That's the driving distance. It would take 8 hours 57 mins to go from Sioux City, Iowa to Waupun, Wisconsin.
The flight distance (direct flight from Sioux City, IA to Waupun, WI) is 394.88 mi.
451 mi = 726.47 kms