Sex Offenders in St. Clair County, IL
As of August 2026, we index about 1,013 registrants with a St. Clair County, IL address — about 39.4 per 10,000 residents. The figure is approximate and moves continuously — search below for the current picture on any specific person.
No code needed — type a name, get photographs and official registry records.
How St. Clair County compares
Registrants we index per 10,000 residents, against the Illinois and national averages. All three rows come from the same continuously updated dataset, so the comparison divides like by like.
| Area | Registrants we index | Per 10,000 residents |
|---|---|---|
| St. Clair County, IL | 1,013 | 39.4 |
| Illinois average | 44,300 | 34.6 |
| United States average | 1,563,010 | 47.2 |
Search St. Clair County — and everywhere else at once
People move. A check limited to St. Clair County misses a registration anywhere else, so a search here covers every US registry — all 50 states, DC and the territories — and lets you narrow to a St. Clair County city or ZIP when that is the question. Every result is scored, carries its photographs, and links to the official registry record.
This is a live demo of the API shape returning sample data. Real, scored results across every registry require a free account with billing enabled.
St. Clair County offender search FAQ
How many registered sex offenders are in St. Clair County?
As of August 2026, we index approximately 1,013 registrants with a St. Clair County, IL address — about 39.4 per 10,000 residents, or about 1 in 254 residents. Treat the figure as scale rather than a fixed number: the registered population moves continuously as people are added, move, or are released from the requirement. When you need an answer about a specific person, run a search.
How does St. Clair County compare with the rest of Illinois?
St. Clair County sits at about 39.4 registrants we index per 10,000 residents, against a Illinois average of about 34.6 and a national average of about 47.2. Density varies block by block inside any county, so use the ratio as context — and a search, not an average, to answer about a specific address or person.
How do I check a specific person in St. Clair County?
Type their last name and add whatever else you hold — first name, date of birth, or narrow to a St. Clair County city or ZIP. You get scored matches with photographs and official record links, and the search covers every US registry at once, so someone now in St. Clair County who was registered elsewhere still surfaces. Your first 25 searches are free, no card required.
Offendersearch is not a consumer reporting agency and results are not a consumer report. Do not use them for FCRA-covered decisions without appropriate process.