There are
1,734 mi
from Norwalk, CA to Marshalltown, IA
That's the driving distance. It would take 1 day 6 hours to go from Norwalk, California to Marshalltown, Iowa.
The flight distance (direct flight from Norwalk, CA to Marshalltown, IA) is 1,475.20 mi.
1,734 mi = 1.61 kms