Miles between Oceanside, CA and San Marcos, CA

There are
16 mi
from Oceanside, CA to San Marcos, CA

That's the driving distance. It would take 21 minutes to go from Oceanside, California to San Marcos, California.

The flight distance (direct flight from Oceanside, CA to San Marcos, CA) is 12.84 mi.

16 mi = 25.57 kms