SearchSystems Editorial

Reviewed and updated October 11, 2026 by the SearchSystems.net editorial team. Every office link on this page was opened and checked against the office's own website at review time.

About this guide

Rock Island County is a county in Illinois with about 143,000 residents (2024 Census Bureau estimate). Its public records are not in one place: court cases, jail bookings, deeds, property values, vital records and records requests each belong to a different office. This guide names the office that holds each kind of record, links to its own website and gives the phone number and address where the office publishes them. SearchSystems verified 8 county office pages for Rock Island County, every one opened and checked.

In this guide: Where the records live, Jail and arrests, Court records, County Clerk, Deeds and property, Vital records, State's Attorney, Records requests, Statewide sources, More directory links, Cities and towns, Other counties and Questions.

Where Rock Island County public records live

Each kind of Rock Island County record is kept by a different office. The list below names the office SearchSystems verified for each one; the sections that follow give its phone, address and hours where the office publishes them.

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Arrests, jail and inmate lookups in Rock Island County

A person arrested in Rock Island County is booked into the jail, and the booking record (name, charges, bond and the next court date) is public in most cases. The office below is the one SearchSystems verified for jail and inmate information in Rock Island County.

  • Website: rockislandcountyil.gov/318/Sheriffs-Office (page title: Sheriff's Office | Rock Island County, IL)
  • Phone: 309-558-3432
  • Address: 1317 Third Avenue County Justice Center Rock Island, IL 61201
  • Hours: Monday through Friday 8 am to 4:30 pm
  • Checked: September 23, 2026, the page answered.

Jail rosters usually show the people in custody now. Once a person is released, the case continues in the court records below.

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Court records and case lookups in Rock Island County

Civil, criminal, family, probate and traffic cases filed in Rock Island County are kept by the clerk of the court that heard them. Many courts offer an online case search; the page below is the one SearchSystems verified for Rock Island County.

  • Website: rockislandcountyil.gov/189/Circuit-Clerk (page title: Circuit Clerk | Rock Island County, IL)
  • Phone: 309-558-3538
  • Address: 1317 Third Ave, Rock Island, IL 61201
  • Hours: Monday through Friday 8 am to 4:30 pm
  • Checked: October 11, 2026, the page answered.

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County Clerk of Rock Island County

The county clerk is the county's record keeper. What the office holds differs by state: in some states it files marriage licenses and vital records, in others deeds, court papers or the meeting records of the governing board. Its own website below says what it holds in Rock Island County.

  • Website: rockislandcountyil.gov/236/County-Clerk (page title: County Clerk | Rock Island County, IL)
  • Phone: 309-558-3569
  • Address: 1504 Third Avenue First Floor Rock Island, IL 61201
  • Hours: Monday through Friday 8 am to 4:30 pm
  • Checked: September 23, 2026, the page answered.

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Deeds, land records and property values in Rock Island County

Two offices share property records. The recording office files deeds, mortgages, liens and the other documents that affect title to land in Rock Island County. The assessment office sets the taxable value of each parcel and usually offers a free parcel search by address or owner name.

Recorded documents: County Recorder

Property values: Supervisor of Assessments

  • Website: rockislandcountyil.gov/172/Assessment-Office (page title: Assessment Office | Rock Island County, IL)
  • Phone: (309) 558-3660
  • Address: 1504 Third Avenue County Office Bldg, 2nd Floor Rock Island, IL 61201
  • Hours: Monday through Friday 8 am to 4:30 pm
  • Checked: September 23, 2026, the page answered.

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Birth, death and marriage records in Rock Island County

Certified copies of birth and death certificates for events in Rock Island County are issued by the office below. The Illinois state vital records office also issues certified copies for any event in the state.

  • Website: rockislandcountyil.gov/289/Vital-Records (page title: Vital Records | Rock Island County, IL)
  • Phone: 309-558-3569
  • Address: 1504 Third Avenue Rock Island, IL 61201
  • Checked: September 23, 2026, the page answered.

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State's Attorney for Rock Island County

The State's Attorney is the office that prosecutes criminal cases in Rock Island County. The case files themselves are court records (above); the prosecutor's office handles victim services and questions about pending prosecutions.

  • Website: rockislandcountyil.gov/309/States-Attorney (page title: State's Attorney | Rock Island County, IL)
  • Phone: 309-558-3240
  • Address: 1504 Third Avenue Rock Island, IL 61201
  • Hours: Monday through Friday 8 am to 4:30 pm
  • Checked: September 23, 2026, the page answered.

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Public records requests to Rock Island County

Every state has a public records law that applies to county offices. A record that is not posted online is requested from the office that holds it. Many counties run one request page for every department; it is listed below when SearchSystems verified one for Rock Island County.

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Statewide Illinois sources

Some records are kept by the state rather than the county. These are the Illinois state offices SearchSystems verified; each link opens the state office's own page.

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These links come from the SearchSystems directory for Rock Island County and were opened again on October 2, 2026. Each one still answers.

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Cities and towns in Rock Island County

Rock Island County has 15 incorporated cities and towns (2024 Census Bureau count, population in parentheses). City records such as council minutes, permits, business licenses and police reports are kept by each city; the records on this page are county records whatever the city. SearchSystems has a guide to the city offices of each linked city; the linked names open them.

All 15 cities 15 cities

  • Moline (42,442)
  • East Moline (20,995)
  • Silvis (8,003)
  • Rock Island (36,434)
  • Milan (5,033)
  • Coal Valley (3,883)
  • Carbon Cliff (1,808)
  • Hampton (1,755)
  • Port Byron (1,643)
  • Andalusia (1,167)
  • Rapids City (935)
  • Cordova (663)
  • Reynolds (488)
  • Oak Grove (470)
  • Hillsdale (413)

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Other counties in Illinois

SearchSystems has a guide like this one for every county in Illinois.

Counties starting with A 2 counties

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Counties starting with I 1 counties

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Counties starting with O 1 counties

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Counties starting with R 2 counties

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Counties starting with T 1 counties

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Counties starting with U 1 counties

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Counties starting with V 1 counties

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Rock Island County Arrest Records

The Rock Island County arrest records guide names the nine agencies that report arrests to the FBI here and the 3,019 arrests the seven agencies with every month of 2025 on file reported that year. It also says where a person arrested here is held, how to find out about an arrest and how to get a copy of the report.

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Rock Island County Records Guides

SearchSystems has nine more guides to Rock Island County, each written from the county's own offices and figures: Rock Island County warrants (who issues and serves them, where a person arrested on one is held, how to check for one), Rock Island County inmate search (the jail page of the Rock Island County Sheriff's Office, the jail numbers and who books people), Rock Island County criminal records (the court file, the Illinois criminal history and the local arrest records), Rock Island County court records (which court hears what, the case search and who keeps the files), Rock Island County police reports (which agency holds a report and what the Illinois Freedom of Information Act requires), Rock Island County traffic tickets (which court takes the ticket, who writes them and the driving record), Rock Island County DUI (the DUI law, the arrest, the court case and the license case), Rock Island County divorce records (which court holds the file and how a certified copy is had) and Rock Island County property records (deeds, assessed values, permits and evictions).

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Frequently Asked Questions

Is this the official Rock Island County website?

No. SearchSystems.net is an independent public records directory, online since 1997. It links to the official offices listed above; SearchSystems does not hold records, charge for them or take requests.

How do I find out if someone is in jail in Rock Island County?

Use the jail or inmate page SearchSystems verified for Rock Island County at rockislandcountyil.gov/318/Sheriffs-Office, or call 309-558-3432. Rosters usually show the people in custody now; after release, the case continues in the court records.

Where do I look up a court case in Rock Island County?

The court records page SearchSystems verified for Rock Island County is at rockislandcountyil.gov/189/Circuit-Clerk, phone 309-558-3538. A case number finds a case fastest; a name search returns every case with that name.

Who records deeds in Rock Island County?

The County Recorder, at rockislandcountyil.gov. Deeds, mortgages and liens on land in Rock Island County are filed there.

How do I get a birth or death certificate for Rock Island County?

From the office SearchSystems verified for Rock Island County vital records at rockislandcountyil.gov/289/Vital-Records, phone 309-558-3569, or from the Illinois state vital records office.

How do I request a public record from Rock Island County?

Through the records request page at rockislandcountyil.gov. A record that is not covered there is requested from the office that holds it.