Today San Marcos, CA, San Marcos CA is count around 140 homes for sale at current average listing price of $1,088,791. Nearby neighborhoods of San Marcos, CA are 92078 - San Marcos, 92069 - San Marcos, San Marcos, San Elijo Hills, Lake San Marcos, Santa Fe Hills, Old Creek Ranch, Rancho Santalina, Mission Villas, Ridgeview. Most of San Marcos, CA homes are 3 bedrooms with 3 bathrooms.