It is an unincorporated area in southeastern Travis County, Texas, United States. It has no local government of its own and no official boundaries. But Austin has annexed portions, including the site of Austin-Bergstrom International Airport in 1990. After that, most recently in 2013, the city added more Del Valle territory to the east (8 to 13 miles southeast of downtown Austin). Recent industrial developments include those by Tesla, which has received significant tax relief from Del Valle Independent School District, rated at $60 million.