There are
212 mi
from Waterloo, IA to Sioux City, IA
That's the driving distance. It would take 4 hours 15 mins to go from Waterloo, Iowa to Sioux City, Iowa.
The flight distance (direct flight from Waterloo, IA to Sioux City, IA) is 206.68 mi.
212 mi = 341.50 kms