Decent drive. Grew up in Newark, specifically a small town called Toboso, and have lived in Marietta (college), Indianapolis (first real job), and Cincinnati (been here for a decade, doubt we'll be leaving anytime soon). My current house is 149 miles from my childhood home. I was about 225 miles away when I lived north of Indy.
Tough question for those who grew up all over the place (military families, etc.), but how far from what you consider your childhood home have your lived? For me, I grew up in Western Ohio, and lived in Orange County, CA for a while.