Miles between St Louis, MO and Marshalltown, IA

There are
349 mi
from St Louis, MO to Marshalltown, IA

That's the driving distance. It would take 6 hours 54 mins to go from St Louis, Missouri to Marshalltown, Iowa.

The flight distance (direct flight from St Louis, MO to Marshalltown, IA) is 276.13 mi.

349 mi = 560.87 kms