There are
1,772 mi
from Citrus Heights, CA to San Marcos, TX
That's the driving distance. It would take 1 day 6 hours to go from Citrus Heights, California to San Marcos, Texas.
The flight distance (direct flight from Citrus Heights, CA to San Marcos, TX) is 1,459.55 mi.
1,772 mi = 1.61 kms