Mount Prospect Illinois

Mount Prospect, Illinois has recorded 27 homicides over the tracked period, with 33 victims identified. Tracking continues through 2026. The city ranks #133 among 339 U.S. cities tracked by the FBI, with a clearance rate of 19% — meaning an arrest or suspect identification was made in 5 of those incidents, while 11 remain open. The weapon mix skews toward firearm - handguns (roughly 37% of cases with weapon data), with firearm - type unknown, knife/cutting instrument, blunt object as the next-most-frequent categories. The single deadliest month on record was December 2022, with 6 homicides logged. Reporting is dominated by Mount Prospect Police Department, which filed 27 incident reports. The annual homicide count runs 71% below the per-city average for the FBI's tracking universe. Illinois's statewide firearms policy — a Firearm Owners Identification card requirement — is part of the regulatory backdrop for the local dynamic, even as the city-level pattern is shaped most directly by community-level conditions and the broader opioid and fentanyl crisis. For broader statewide context, see our Illinois state homicide data page. The Murder Channel's Illinois coverage provides ongoing context for this city's homicide patterns as new FBI UCR reports are released.