http://www.ed.gov/news/press-releases/first-official-three-year-student-loan-default-rates-published
I'll take a guess that "for profit" schools that advertise on late night TV are more common in the high debt/high delinquency states.
Student loans have become just another fraud ridden government program
It used to be you would get a loan to go to a accredited University or Junior College to get an education.
Nowadays, there are a ton of schools set up to pretty much split the money with the students and rip off the government with little or no intention to pay back the debt.