Zip Code 78702 is located in the East Austin area off Interstate 35 near downtown. Texas homes for sale in the 78702 zip code area. Find information on the community and real estate services available to home buyers and sellers in the Austin, TX 78702 area. Search real estate listings and view homes for sale in zip code 78702 in Texas. For more info about any of these 78702 real estate listings, click the "Request More Information" button.