There are
2,096 mi
from San Marcos, CA to Brown Deer, WI
That's the driving distance. It would take 1 day 12 hours to go from San Marcos, California to Brown Deer, Wisconsin.
The flight distance (direct flight from San Marcos, CA to Brown Deer, WI) is 1,719.63 mi.
2,096 mi = 3.22 kms