There are
965 mi
from Marshalltown, IA to Lewisville, NC
That's the driving distance. It would take 18 hours 32 mins to go from Marshalltown, Iowa to Lewisville, North Carolina.
The flight distance (direct flight from Marshalltown, IA to Lewisville, NC) is 784.86 mi.
965 mi = 1,552.87 kms