There are
1,690 mi
from Rialto, CA to Marshalltown, IA
That's the driving distance. It would take 1 day 5 hours to go from Rialto, California to Marshalltown, Iowa.
The flight distance (direct flight from Rialto, CA to Marshalltown, IA) is 1,432.79 mi.
1,690 mi = 1.61 kms