There are
2,199 mi
from Concord, CA to Allouez, WI
That's the driving distance. It would take 1 day 14 hours to go from Concord, California to Allouez, Wisconsin.
The flight distance (direct flight from Concord, CA to Allouez, WI) is 1,809.55 mi.
2,199 mi = 3.22 kms