There are
1,306 mi
from Sioux City, IA to New Milford, NJ
That's the driving distance. It would take 1 day to go from Sioux City, Iowa to New Milford, New Jersey.
The flight distance (direct flight from Sioux City, IA to New Milford, NJ) is 1,155.96 mi.
1,306 mi = 1.61 kms