The Illinois State Police provides an online listing of sex offenders required to register in the State of Illinois. The database is updated daily and allows searching by name, city, county, zip code, and compliance status. 


Illinois Sex Offender Registration Website



If you know the location of a sex offender who is in violation of the registration requirements, you can leave an anonymous tip at the Orland Park Police Department TIPS Line at (708) 349-8477 or by calling the Police Department at (708) 349-4111 or by email at e-mail.