There are
2,158 mi
from Union City, CA to Pewaukee, WI
That's the driving distance. It would take 1 day 13 hours to go from Union City, California to Pewaukee, Wisconsin.
The flight distance (direct flight from Union City, CA to Pewaukee, WI) is 1,808.65 mi.
2,158 mi = 3.22 kms