Registered sex offenders in St Clair County, IL
659 people on the Illinois registry list an address in St Clair County, as of our last check of the official registry on October 22, 2026.
Open the St Clair County map Family safety tips
By registry category
| Category (as listed by ISP) | People |
|---|---|
| Child Sex Offender | 540 |
| Adult Sex Offender | 111 |
| Murderer | 8 |
| Listed as non-compliant with registration | 123 |
Towns in St Clair County
East St Louis 149Belleville 105Cahokia Heights 71Caseyville 34Ofallon 27Swansea 26Cahokia 26E St Louis 25Fairview Heights 23Dupo 20Washington Park 14Shiloh 13Marissa 10Estl 10Collinsville 8Millstadt 8Mascoutah 8Lebanon 7East Carondelet 6New Athens 5East Saint Louis 4Centreville 4Cahokia Hts 3Lenzburg 3Brooklyn 3Cahokia Hgts 3Fairmont City 3Alorton 3Trenton 1Troy 1
ZIP codes
6220662205622036222662204622086222062232622076226962221622016222362239622576226062234622406225862254622646205962255620016229362294
Questions
How many registered sex offenders live in St Clair County, Illinois?
659 people on the Illinois State Police registry list an address in St Clair County as of October 22, 2026.
How can I see where they are on a map?
Open the free map and search any address, town or ZIP code. It lists everyone on the registry within the distance you pick, nearest first, with photos and approximate locations.
How current is this information?
We check our copy against the official Illinois State Police registry regularly; the last check was October 22, 2026. Registry information changes often and can be wrong, so always confirm with the official registry at isp.illinois.gov/Sor.
Can I get notified when someone moves near St Clair County?
The Illinois State Police offers free email notifications on its registry site. NearbyOffenders.com's free email alerts for one address are launching soon; you can join the list.
Counts come from the Illinois State Police public sex offender registry and are grouped by the city each registrant lists, which may not match city limits. Registry information can be out of date or wrong; always confirm with the official registry at isp.illinois.gov/Sor. Registrants under 18 are not shown. NearbyOffenders.com is independent and not affiliated with the Illinois State Police or any government agency. Using registry information to harass or threaten anyone is against the law. Terms & Privacy