60631 (Chicago, IL) as of October 26, 2019. The ratio of all residents to sex offenders in zip code 60631 is 2,864. The ratio of registered sex offenders to all residents in this zip code is much lower than the state average. Crime in Chicago detailed stats: murders. The Sex Offender List & Sex Offender Registry This web site is provided by the.S. Department of Justice to provide a free nationwide search for sex offenders registered by states, territories, Indian tribes, and the District of Columbia. Nsopw is the only national sex offender search site with direct access to registered sex offender information from the individual registration jurisdictions. Colorado Convicted Sex Offender Search.