Trinity Oaks is a gated subdivision located off Highway 281 near Bulverde Road and Smithson Valley Road in the Far North Central San Antonio area in Bexar County. The Trinity Oaks subdivision has a neighborhood swimming pool, park, play ground, and club house. Trinity Oaks is in the Comal Independent School District. Displayed below are homes for sale in Trinity Oaks, a gated neighborhood in San Antonio, TX 78261. Request more info or schedule a showing from the detail page of each of these Trinity Oaks real estate listings in San Antonio. Receive email alerts whenever new Trinity Oaks homes hit the market. My Texas Home Resource provides information on new and resale homes to buyers and sellers in Trinity Oaks and the surrounding San Antonio, TX 78261 area.