Union County Sex Offenders
Union County sex offenders are tracked through the sheriff's office in Jonesboro and the Illinois State Police statewide database. This southern Illinois county has close to 17,000 residents living in small towns and rural areas between the Shawnee National Forest and the Mississippi River. You can search for sex offenders in Union County at no cost through the ISP registry or the OffenderWatch network. This page walks through how the registry works, what Union County law enforcement does to monitor sex offenders, and how you can look up offender data near your home or your child's school.
Union County Quick Facts
Union County Sheriff and Sex Offender Duties
The Union County Sheriff's Office manages sex offender registration for residents in the unincorporated parts of the county. Towns like Jonesboro, Anna, and Cobden have local police that handle registration within their limits. But for the rest of Union County, the sheriff is the one who takes in registrations, verifies addresses, and sends data to the state. The office sits right in the county seat and is the main point of contact for anyone with questions about sex offenders in Union County.
When a sex offender moves into Union County, they must go to the sheriff's office in person. They provide their name, address, photo, and details about the offense. Under 730 ILCS 150, this has to happen within 3 days of the move. The sheriff then sends the data to the Illinois State Police, which posts it on the public registry. If a sex offender in Union County fails to show up or gives wrong info, the sheriff's office can pursue felony charges. It is a Class 3 felony to skip registration in Illinois, and that adds 10 more years to the offender's time on the list.
You can reach the Union County Sheriff at (618) 833-5500. Walk-ins are welcome during normal business hours at the courthouse in Jonesboro.
| Address | 210 S. Main Street, Jonesboro, IL 62952 |
|---|---|
| Phone | (618) 833-5500 |
Search Union County Sex Offenders Online
The fastest way to look up sex offenders in Union County is through the Illinois State Police Sex Offender Registry. The site is free and open to all. You can search by name, zip code, or town. Type in Jonesboro, Anna, Cobden, or any other Union County address and the system pulls up every registered sex offender near that spot. Each result shows a photo, home address, offense type, and registration status.
The Illinois Sheriffs' Association also supports the OffenderWatch system across the state. You can view the tool below for more on how this network covers Union County sex offender data.
View the Illinois Sheriffs' Association OffenderWatch page for Union County area coverage.
OffenderWatch is updated as offenders register or change their address. Data for Union County flows through the same system used by dozens of other counties in Illinois.
You can also set up email alerts through OffenderWatch. Just enter your home address or a school address in Union County and the system will send you a notice when a sex offender registers nearby. This alert feature is free and takes about a minute to set up.
Sex Offender Registration in Union County
Illinois law requires every convicted sex offender to register with local law enforcement. In Union County, that means going to either the sheriff's office or a local police department. The process is in person. No online or mail-in registration exists. Offenders must bring valid identification and provide details about where they live, where they work, and what car they drive. All of this goes into the state database.
Under 730 ILCS 150, most sex offenders in Union County must verify their information every 90 days. That means going back to the sheriff's office four times a year to confirm that nothing has changed. Sexual predators have an even shorter cycle. If a sex offender moves within Union County or leaves the county altogether, they must report the change within 3 days. The same rule applies if they start a new job or enroll in school.
Most offenders stay on the registry for 10 years. But some are on for life. The length depends on the crime. A conviction for predatory criminal sexual assault, for example, means lifetime registration. Under 730 ILCS 152, the state must post sex offender data within 72 hours of an offender registering or updating their info. That keeps the Union County portion of the registry fairly current at all times.
Note: Sex offenders who miss a verification date in Union County face a Class 3 felony and a 10-year extension on their registration period.
Union County Sex Offender Restrictions
State law sets clear limits on where sex offenders can live in Union County. No registered sex offender may live within 500 feet of a school, playground, or park. Daycares and other child-serving facilities also fall under this buffer zone. Union County has several schools spread across Jonesboro, Anna, Dongola, and Cobden, so these restrictions affect where an offender can find housing in the area.
Sex offenders in Union County also face rules about loitering. Being near a school or park without a clear reason can lead to new criminal charges. The sheriff's office checks these zones during routine compliance visits. Because Union County is largely rural, many sex offenders end up in areas outside town limits where they can meet the 500-foot rule. But they still must stay registered and keep the sheriff's office informed of their exact address.
State Databases for Union County Sex Offenders
Beyond the ISP registry, the Illinois Department of Corrections has its own sex offender search tool. This covers offenders who served time in a state prison. It can show release dates, parole status, and other details the main registry does not include. If you are tracking a sex offender who was recently released and might be living in Union County, this tool fills in some gaps.
The Illinois.gov sex offender service page links to search tools and state guidance. It explains how the registry works and what rights you have when looking up sex offender data. For Union County, the best approach is to check both the ISP registry and the IDOC search. The two overlap but are not identical. The ISP covers all registered sex offenders whether or not they did prison time. The IDOC tool is just for those who went through the state prison system.
Together, both give you the most complete picture of sex offenders in or near Union County.
Community Safety in Union County
Union County law enforcement takes sex offender compliance seriously. The sheriff's office runs checks to make sure every registered sex offender still lives where they say they do. These visits happen on a regular basis. If someone in the community spots a sex offender living too close to a school, they can report it to the sheriff at (618) 833-5500. The office will investigate and take action if a violation is confirmed.
It is worth noting that using registry data to harass a sex offender is against the law. The registry exists as a public safety tool. Illinois statute protects offenders from threats and intimidation, even while requiring them to stay registered. Residents of Union County can and should use the data to stay informed, but not to take matters into their own hands. If you have a concern about a sex offender in Union County, contact law enforcement and let them handle it.
Nearby Counties
These counties border Union County. Sex offenders can move across county lines, so checking nearby registries is a good idea. Each county sheriff tracks sex offenders in their own area.