My last two years of high school were spent at Marion High School, a small high school in a tiny country town in Texas.
I'm currently a member of classmates.com. They offer a "map" service where people can list where they currently live (but only for the US and Canada ... grr). While it's hardly scientific, I noticed that only 20% of students from my class at Marion had left Texas, as opposed to 60% of Keystone students. Make of that what you will.