There are
2,198 mi
from Walnut Creek, CA to De Pere, WI
That's the driving distance. It would take 1 day 14 hours to go from Walnut Creek, California to De Pere, Wisconsin.
The flight distance (direct flight from Walnut Creek, CA to De Pere, WI) is 1,811.07 mi.
2,198 mi = 3,537.92 kms