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 October 2, 2026.
Round Lake Beach, Illinois, in Lake County, has about 27,000 residents (2024 Census Bureau estimate). A police report belongs to the agency whose officer wrote it, so which office holds a report from Round Lake Beach depends on where the incident happened. 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 city's records page, the sheriff's reports, what the law requires and common questions.
Related guides: Round Lake Beach public records, Lake County police reports, Round Lake Beach arrest records, Round Lake Beach warrants, Round Lake Beach inmate search, Round Lake Beach criminal records, Illinois arrest records and Illinois inmate search.
Which Agency Holds a Report from Round Lake Beach
The report of an incident is released by the agency that took it; the court and the jail hold their own records of the same event, but not the report.
Inside Round Lake Beach that is the agency that reports to the FBI for the city (filed by the FBI as Round Lake Beach Police Department); outside it, the Lake County Sheriff's Office.
The FBI's agency list also places one campus police department and three other agencies in Lake County, each with a records office of its own.
The Barrington Police Department, the Island Lake Police Department, the Fox River Grove Police Department and one more are each listed by the FBI across several counties including Lake County, so their arrests are not broken out for Lake County here.
Reports from the Round Lake Beach Police
For Round Lake Beach, SearchSystems opened and checked the Round Lake Beach police department's page at roundlakebeachil.gov/departments_and_services/police/faqs.php (page title: Welcome to Round Lake Beach, IL), phone 847-270-9111, 1937 N Municipal Way Round Lake Beach IL 60073, Monday through Friday 8 a.m. to 5 p.m., which answered when SearchSystems opened it on September 25, 2026.
The agency that reports for Round Lake Beach had 23 violent and 209 property crimes reported for 2025 and reported 456 arrests for 2025.
Reports from the Lake County Sheriff's Office
The Lake County Sheriff's Office is the county agency; it had 99 violent and 522 property crimes reported for 2025 and reported 656 arrests for 2025.
Its reports come from its records unit. The office's page SearchSystems verified is its custody page, at lakecountyil.gov/2031/Inmate-Information (page title: Inmate Information | Lake County, IL), 29 S Martin Luther King Jr Avenue, Waukegan, IL 60085, a site that blocks automated checks (HTTP 429), so open it in a browser.
What the Illinois Freedom of Information Act Requires
Under the Illinois Freedom of Information Act the agency must answer a request within 5 business days, with one 5-day extension, and it may charge copying only after the first 50 pages. The request goes to the agency that holds the report, in writing, and does not have to say why the report is wanted.
Frequently Asked Questions
How do I get a police report in Round Lake Beach?
From the agency that took it. The Round Lake Beach police department's page is at roundlakebeachil.gov, phone 847-270-9111; the sheriff's reports come from the Lake County Sheriff's Office.
How long does an agency in Round Lake Beach 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 Lake County Sheriff's Office?
From its records unit. Under the Illinois Freedom of Information Act the answer is due within 5 business days, with one 5-day extension.
Is this the official Round Lake Beach website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official city, county, court and state offices described above and does not hold records, charge for them or take requests.