Today San Marcos, TX, San Marcos TX is count around 377 homes for sale at current average listing price of $395,071. Nearby neighborhoods of San Marcos, TX are Trace, Millbrook Park, La Cima, Kissing Tree, Trace Sub Pa 2B Sec B, Whisper, Castle Forest, The Park At Willow Creek, Cottonwood Creek, Hughson Heights I. Most of San Marcos, TX homes are 3 bedrooms with 2 bathrooms.