There are
761 mi
from Marshalltown, IA to Terrell, TX
That's the driving distance. It would take 14 hours 20 mins to go from Marshalltown, Iowa to Terrell, Texas.
The flight distance (direct flight from Marshalltown, IA to Terrell, TX) is 669.37 mi.
761 mi = 1,224.05 kms