There are
1,823 mi
from Antioch, CA to Marshalltown, IA
That's the driving distance. It would take 1 day 7 hours to go from Antioch, California to Marshalltown, Iowa.
The flight distance (direct flight from Antioch, CA to Marshalltown, IA) is 1,546.59 mi.
1,823 mi = 2,934.02 kms