Today san marcos unified, San Marcos CA is count around 160 homes for sale at current average listing price of $1,232,629. Nearby neighborhoods of san marcos unified are 92069 - San Marcos, 92078 - San Marcos, San Elijo Hills, Lake San Marcos, 92009 - Carlsbad, Rancho Tesoro, La Costa, San Marcos, 92081 - Vista, Emerald Heights. Most of san marcos unified homes are 3 bedrooms with 3 bathrooms.