There are
1,735 mi
from Garden Grove, CA to Marshalltown, IA
That's the driving distance. It would take 1 day 6 hours to go from Garden Grove, California to Marshalltown, Iowa.
The flight distance (direct flight from Garden Grove, CA to Marshalltown, IA) is 1,472.62 mi.
1,735 mi = 1.61 kms