EDGAR CO. (ECWd) –

Edgar County is number 3:  with 31.42 registered sex offenders per 10,000 people.

From REBOOTIllinois.com:

The state of Illinois created the sex offender registry to help citizens monitor where people convicted of sexual crimes live. If a person wants to avoid a registered sex offender, they need only not live near where the official lists say such offenders live. Even people who do live near registered sex offenders can use the lists to be more aware of what goes on in their neighborhoods.

According to Illinois laws 730 ILCS 152/115 (a) and (b), the Illinois State Police is supposed to run an online Sex Offender Database for the whole state. To be registered, an offender must be convicted of committing or attempting to commit (or found not guilty by reason of insanity) of one of more of a particular set of crimes according to…
Read more: http://www.rebootillinois.com/2014/08/28/top-lists/caitlinwilson/sex-offenders-per-capita-county-illinois/24085/#ixzz3BoTyYISm