There are
1,664 mi
from Des Moines, IA to Walnut, CA
That's the driving distance. It would take 1 day 4 hours to go from Des Moines, Iowa to Walnut, California.
The flight distance (direct flight from Des Moines, IA to Walnut, CA) is 1,417.85 mi.
1,664 mi = 1.61 kms