There are
2,051 mi
from Buena Park, CA to Wauwatosa, WI
That's the driving distance. It would take 1 day 11 hours to go from Buena Park, California to Wauwatosa, Wisconsin.
The flight distance (direct flight from Buena Park, CA to Wauwatosa, WI) is 1,730.73 mi.
2,051 mi = 3.22 kms