Zip Code 78749 is located in the West Austin area near Oak Hill. Search Texas homes for sale in the 78749 zip code area. Find information on the community and real estate services available to home buyers and sellers in the Austin, TX 78749 area. Browse homes for sale in 78749, a zip code in Austin, Texas. For more info about any of these 78749 real estate listings, click the "Request More Information" button located on the detail page of each property.