There are
213 mi
from Sioux City, IA to Waterloo, IA
That's the driving distance. It would take 4 hours 15 mins to go from Sioux City, Iowa to Waterloo, Iowa.
The flight distance (direct flight from Sioux City, IA to Waterloo, IA) is 206.68 mi.
213 mi = 342.08 kms