There are
1,697 mi
from Yakima, WA to Marshalltown, IA
That's the driving distance. It would take 1 day 5 hours to go from Yakima, Washington to Marshalltown, Iowa.
The flight distance (direct flight from Yakima, WA to Marshalltown, IA) is 1,392.21 mi.
1,697 mi = 1.61 kms