Barton Hills is a neighborhood in Austin, Texas. It is located in south Austin, and encompasses part of ZIP code 78704. Barton Hills is bounded by South Lamar and Zilker neighborhoods to the east, Barton Springs Road and Zilker Park to the north, Barton Creek and the Spyglass-Barton's Bluff neighborhood to the west and the Capital of Texas Highway to the south. Barton Hills is primarily residential, with the oldest homes dating back to the 1940s.