Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest counts are the ones each agency reported to the FBI, as the FBI held them on October 8, 2026. The jail figures are from the Vera Institute of Justice's Incarceration Trends data. Every office link was opened and checked against the office's own site on September 23, 2026.
Rock Island County, Illinois, has about 143,000 residents (2024 Census Bureau estimate). Every warrant for Rock Island County comes from a judge of the Circuit Court of Rock Island County, is served by whichever agency finds the person, and is recorded in the court file of the case it was issued in. This guide says who issues and serves warrants here, where a person arrested on one is held, how to check for one and how one is cleared.
This guide covers who issues warrants, who serves warrants, after a warrant arrest, checking for a warrant, clearing a warrant and common questions.
Related guides: Rock Island County public records, Rock Island County arrest records, Rock Island County inmate search, Rock Island County police reports, Rock Island County property records, Illinois arrest records and Illinois inmate search.
Who Issues Warrants in Rock Island County
In Illinois an arrest warrant is signed by a judge. For Rock Island County that means the Circuit Court of Rock Island County, which hears every civil, criminal, family, probate, traffic and juvenile case.
When a defendant misses a court date the judge issues a bench warrant, and either kind of warrant lives in the court file of the case, kept by the Circuit Clerk.
Illinois has no single public index of every trial court case; each court's records are looked up through that court.
Who Serves Warrants in Rock Island County
The Rock Island County Sheriff's Office and the agencies that report for Moline, Rock Island, East Moline, Silvis, Milan, Coal Valley and one more cities serve warrants in Rock Island County.
The FBI's agency list also places one more agency in Rock Island County: Black Hawk College at Moline (campus police); it serves warrants on its own ground.
A warrant issued in Rock Island County is good anywhere in Illinois, so it is served by whichever agency finds the person, in a traffic stop as often as at the door.
Together, the seven agencies in Rock Island County with all twelve months of 2025 on file reported 3,019 arrests to the FBI that year; arrests on warrants are counted among them, not separately.
Each agency and what it reported is in Rock Island County arrest records.
Where a Person Arrested on a Warrant from Rock Island County Is Held
A person arrested on a warrant and kept in custody goes to the county jail, whichever agency made the arrest. The jail, run by the Rock Island County Sheriff's Office, held about 190 people on an average day in 2023 by the Vera Institute of Justice's count and has a jail page SearchSystems verified at rockislandcountyil.gov/318/Sheriffs-Office, phone 309-558-3432. The Rock Island County inmate search guide covers the jail in full.
A person arrested in Rock Island County on a warrant from another county is held at the same jail until that county takes custody.
How to Check for a Warrant in Rock Island County
The place to check for a warrant from Rock Island County is the State's Attorney, phone 309-558-3240, which can say whether charges were filed; a warrant on a complaint follows the filing.
Not one of the Rock Island County pages SearchSystems verified (the sheriff's, the prosecutor's and the records request page) is a list of open warrants, so a check means asking the court or the prosecutor about a case by name.
Clearing a Warrant from Rock Island County
Only the judge who issued a warrant can recall it. For a case from Rock Island County that means appearing before the Circuit Court of Rock Island County, with the case put back on the calendar through the Circuit Clerk.
A lawyer can often arrange the appearance in advance. The State's Attorney's page SearchSystems verified is at rockislandcountyil.gov/309/States-Attorney, phone 309-558-3240.
Frequently Asked Questions
Can I check for a warrant online in Rock Island County?
Not from the Rock Island County pages SearchSystems verified; none of them is a warrant list. The court that issued it keeps the record; ask the Circuit Clerk.
Who serves warrants in Rock Island County?
The Rock Island County Sheriff's Office, and the agency that reports for the city where the person is found; an Illinois warrant is valid anywhere in the state.
Where is a person arrested on a warrant in Rock Island County held?
At the county jail, run by the Rock Island County Sheriff's Office, if kept in custody.
How is a warrant from Rock Island County cleared?
By appearing before the court that issued it; the judge recalls the warrant in court. The case is put back on the calendar through the Circuit Clerk.
Is this the official Rock Island County website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official county, court and state offices described above and does not hold records, charge for them or take requests.