Rock Island County Sheriff's Office

Rock Island County Sheriff's Office is the county law-enforcement agency for Rock Island County, Illinois, serving from Rock Island at 1317 Third Avenue. The office serves the full county, including the county seat of Rock Island and unincorporated areas outside city police limits. Its area of responsibility covers patrol and investigative work in county jurisdiction, custody and care through county jail operations when applicable, and security support for county court functions. Rock Island County lies along Illinois travel and commerce routes that bring daily traffic through the area, and the sheriff's office is the primary local law-enforcement presence for residents across communities outside municipal police jurisdictions. Public safety emergencies in Rock Island County should be reported by dialing 911.