Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest and crime counts are the ones each agency reported to the FBI, as the FBI held them on October 8, 2026. Every office link was opened and checked against the office's own site between September 23, 2026 and September 28, 2026.
Carroll County, Illinois, has about 15,000 residents (2024 Census Bureau estimate). A police report belongs to the agency whose officer wrote it, so which office holds a report from Carroll County depends on where the incident happened: the Carroll County Sheriff's Office for the unincorporated county, the agency that reports for the city inside a city. This guide names each agency, where its records page is and what the Illinois Freedom of Information Act requires of it.
This guide covers which agency, the sheriff's reports, the cities' reports, how many reports, what the law requires and common questions.
Related guides: Carroll County public records, Carroll County arrest records, Carroll County warrants, Carroll County inmate search, Carroll County criminal records, Illinois arrest records and Illinois inmate search.
Which Agency Holds a Report from Carroll County
A crime, incident or collision report belongs to the agency whose officer wrote it, and that agency releases it, not the court, the jail or the prosecutor.
In Carroll County that is the Carroll County Sheriff's Office for the unincorporated county and for any city that contracts with it for police service, and the agency that reports for a city where the city has one of its own.
Reports from the Carroll County Sheriff's Office
The Carroll County Sheriff's Office is the county agency; it had 1 violent and 14 property crimes reported for 2025 and reported 116 arrests for 2025.
Its reports come from its records unit, reached through the office at 815-244-2635. The office's page SearchSystems verified is its jail page, at carrollcountyil.gov/county_departments/sheriff/index.php (page title: Carroll County, IL), phone 815-244-2635, which answered when SearchSystems opened it on September 28, 2026.
Reports from the City Agencies in Carroll County
The seven cities the FBI lists in Carroll County with a reporting agency of their own:
- Savanna: 0 arrests reported for 2019.
- Thomson: 1,152 arrests reported for 2025.
- Lanark: 0 violent and 2 property crimes reported for 2025; 2 arrests reported for 2025.
- Mount Carroll: 0 violent and 5 property crimes reported for 2025; 4 arrests reported for 2025.
- Milledgeville: 0 violent and 1 property crimes reported for 2025; 1 arrests reported for 2025.
- Shannon.
- Chadwick: 1,152 arrests reported for 2025.
A city on that list is reported separately whether the officers are the city's own or the sheriff's under contract; the FBI's list does not say which.
How Many Reports: Carroll County in 2025
The four agencies in Carroll County with all twelve months of 2025 on file reported 1 violent and 22 property crimes to the FBI that year, each one a report taken by the agency that holds it.
Together, the six agencies in Carroll County with all twelve months of 2025 on file reported 2,427 arrests to the FBI that year, and each arrest is a report of its own.
What the Illinois Freedom of Information Act Requires
The Illinois Freedom of Information Act sets the rules: an answer within 5 business days, with one 5-day extension, at a charge of copying only after the first 50 pages, from the agency that holds the report.
Any other county record goes through the county records request page SearchSystems verified, at carrollcountyil.gov/county_departments/clerk___recorder/vital_recor... (page title: Carroll County, IL).
A defendant who has been charged gets the report through the case: the State's Attorney, (815) 244-0290, handles discovery for pending cases.
Frequently Asked Questions
How do I get a police report in Carroll County?
From the agency whose officer took it: the Carroll County Sheriff's Office for its own arrests, or the agency that reports for the city where it happened. Under the Illinois Freedom of Information Act the answer is due within 5 business days, with one 5-day extension.
How long does an agency in Carroll County have to answer?
Under the Illinois Freedom of Information Act, within 5 business days, with one 5-day extension. It may charge copying only after the first 50 pages.
How do I get a report from the Carroll County Sheriff's Office?
From its records unit, reached through the office at 815-244-2635. Under the Illinois Freedom of Information Act the answer is due within 5 business days, with one 5-day extension.
Is this the official Carroll 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.