Austin has a ton of outlying cities that just get labeled as Austin. Parts of Round Rock, Cedar Park, San Marcos, Buda, Kyle, and it's referred to as Austin.
No, I was raised in Georgetown, which is north of Round Rock. I lived of 79 in my first "real" apartment. That's in Round Rock. I still have a good friend that lives there, but I'm not sure where, he's so good of a friend we never talk.