Yeah both set of folks live in Austin. Only my MIL is originally from Austin, though. My FIL is from Terrell, my dad is from Alpine, and my mom is from Temple.
But of course one of the big reasons we've chosen to stay here, is to remain near family, especially once we had kids.
Both my brother and sister also live in Austin, although my sister lived in various places in Florida for about 15 years before coming back.
And my wife's sister is back in Austin after spending most of the past 20 years in Colorado and Oregon. She's very much a hippie chick but she's back in Austin, for now. Her brother is in New Jersey right now but that's because his wife is in the Air Force. They've also lived in San Antonio, the Bay Area, the DC area, over the past 10 years. But he's also lived in Austin much of his life and as soon as his wife hits 20 years in the Air Force, next year, they're going to move to the house they've built on their property just outside of Fredericksburg.
We're actually looking at some land very close to theirs, we just might retire there too, unless I can convince my wife to move to some island in the Caribbean!