Percent of Creationist schools in USA

Hello hello,
I'm looking for reliable sources as to how much creationist public and/or private schools teach creationism in USA.

Also, once the number is found, debate! :D

Not sure, but most of them are probably concentrated within the "bible belt". http://en.wikipedia.org/wiki/Bible_Belt

One school teaching Creationism/ID as anything other than ridiculous bullshit is too fucking many.

CREATE MY ANUS