Your question is quite old! Sorry to take so long getting back to you. Perhaps it's too little too late, but the FBI lists links to 51 State's Sex Offender Registry websites.

See the page here: http://www.fbi.gov/hq/cid/cac/states.htm

My recommendation to you is to research each one and compile your own data. As far as I know this information has not already been compiled by anyone, but perhaps someone will comment on your question after it is posted to the website today.