There are
1,868 mi
from Walnut Creek, CA to Marshall, MO
That's the driving distance. It would take 1 day 8 hours to go from Walnut Creek, California to Marshall, Missouri.
The flight distance (direct flight from Walnut Creek, CA to Marshall, MO) is 1,556.36 mi.
1,868 mi = 3,006.42 kms