There are
2,053 mi
from San Marcos, CA to Wauconda, IL
That's the driving distance. It would take 1 day 12 hours to go from San Marcos, California to Wauconda, Illinois.
The flight distance (direct flight from San Marcos, CA to Wauconda, IL) is 1,696.88 mi.
2,053 mi = 3.22 kms