There are
1,971 mi
from Dubuque, IA to Walnut Creek, CA
That's the driving distance. It would take 1 day 9 hours to go from Dubuque, Iowa to Walnut Creek, California.
The flight distance (direct flight from Dubuque, IA to Walnut Creek, CA) is 1,677.15 mi.
1,971 mi = 3,172.11 kms