Find Boone County Sex Offenders

Boone County sex offenders are registered at the sheriff's office in Belvidere. This small northern Illinois county has about 53,200 people and sits just south of the Wisconsin border. The sheriff handles all sex offender registration and makes records available to the public through the Illinois State Police statewide registry. You can look up registered sex offenders in Boone County by name, address, or zip code using free online tools.

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Boone County Quick Facts

53,230 Population
Belvidere County Seat
ISP Registry Search Tool
Free Public Access

Boone County Sheriff Sex Offender Records

The Boone County Sheriff's Office is at 615 N. Main Street in Belvidere. The phone number is (815) 544-2322. Under the Sex Offender Registration Act (730 ILCS 150), all sex offenders who live in Boone County must register at this office. They must give their name, home address, work address, vehicle information, and a photo. The sheriff keeps these records and reports them to the Illinois State Police for inclusion in the statewide sex offender database.

The Boone County Sheriff's Office website has information about the department and its services. For looking up sex offenders in Boone County, the best tool is the ISP registry. Belvidere is the county seat and largest city. Most sex offenders in the county live in or near Belvidere. Smaller communities like Poplar Grove, Capron, and Caledonia are also part of Boone County and fall under the same registry.

The Illinois.gov sex offender service page provides another way to access registry data for Boone County.

Illinois.gov sex offender service page

Visit the Illinois.gov sex offender service page to learn about the registry system and search for sex offenders in Boone County.

Sex Offender Registration in Boone County

A sex offender moving into Boone County has three days to register at the sheriff's office. They must appear in person with a valid ID. Staff collects their details and takes a new photo. The information goes to the ISP, which adds it to the statewide registry. Under 730 ILCS 152, the sex offender community notification law, this data must be posted within 72 hours or three business days.

Registration periods vary based on the offense. Most sex offenders in Boone County register for 10 years. Lifetime registration is required for those convicted of predatory criminal sexual assault of a child or other severe sex crimes listed in the statute. Every 90 days, each sex offender has to go back to the sheriff's office to verify their address and other details. If they fail to do this, the Illinois State Police can tack on 10 extra years of registration. Skipping registration altogether is a Class 3 felony.

Boone County borders Wisconsin. Sex offenders crossing state lines have to follow the registration rules of whichever state they move into. Someone coming from Wisconsin into Boone County has to register with the sheriff right away.

Illinois Sex Offender Search Tools

The Illinois State Police Sex Offender Registry is the main statewide database. It includes every registered sex offender from all 102 Illinois counties, including Boone. You can search by name, county, city, or zip code. Results show photos, addresses, and conviction details.

Other resources include the OffenderWatch Illinois network, which many counties across the state use. The Illinois Sheriffs' Association promotes OffenderWatch for public awareness. Email alerts are available so you can be notified when a sex offender registers near your chosen address. The Illinois Department of Corrections has a separate tool for searching paroled sex offenders in the state.

Note: The ISP reminds the public that registry data may not always reflect the most current information for Boone County.

Boone County Sex Offender Compliance

Compliance checks are part of how the Boone County Sheriff monitors sex offenders. Deputies visit the address listed on each offender's registration to verify they still live there. If the person has moved without updating their info, it leads to criminal charges. Failing to register is a Class 3 felony under Illinois law, with a penalty of two to five years in prison.

The ISP backs this up with automatic registration extensions. When a sex offender in Boone County misses a required check-in, the ISP adds 10 years to their registration period. The offender receives a registered letter and has 10 business days to petition for review. If the petition is denied, they get another 30 days to request a hearing. These steps are set out in the Sex Offender Registration Act. The law also makes clear that anyone who uses sex offender registry data to commit a crime can be prosecuted.

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Nearby Counties

These counties surround Boone County in northern Illinois. Since Boone is near the Wisconsin state line, checking both Illinois and Wisconsin registries may be helpful.