Today san marcos isd, San Marcos TX is count around 221 homes for sale at current average listing price of $406,510. Nearby neighborhoods of san marcos isd are Trace, La Cima, Kissing Tree, Millbrook Park, Castle Forest, Trace Sub Pa 2B Sec B, The Park At Willow Creek, Cottonwood Creek, Hughson Heights I, La Cima Ph 2 Sec A. Most of san marcos isd homes are 3 bedrooms with 2 bathrooms.