Today San Marcos, TX, San Marcos TX is count around 412 homes for sale at current average listing price of $444,950. Nearby neighborhoods of San Marcos, TX are Trace, Millbrook Park, Cottonwood Creek, Kissing Tree, La Cima, Trace Sub Pa 2B Sec B, Trace Sub Pa 6a Sec D, La Cima: 70ft. lots, Cottonwood Creek Ph 3 Unit 2, Merry Kone Fitzpatrick. Most of San Marcos, TX homes are 3 bedrooms with 2 bathrooms.