There are
1,729 mi
from Walnut Creek, CA to Rockwall, TX
That's the driving distance. It would take 1 day 6 hours to go from Walnut Creek, California to Rockwall, Texas.
The flight distance (direct flight from Walnut Creek, CA to Rockwall, TX) is 1,477.08 mi.
1,729 mi = 2,782.37 kms