Elmhurst, IL Noise Ordinances: Quiet Hours (2026)

DuPage County Code Chapter 26, Article IV, Section 26-10-15 ("Loud and Raucous Noise") was amended by ordinance JPS-O-0001-25, which the DuPage County Judicial and Public Safety Committee approved on April 15, 2025 and the full County Board adopted on April 22, 2025. The amendment was driven by complaints from residents of unincorporated West Chicago about late-night amplified outdoor parties that the prior, industrial-focused ordinance could not reach. The amended section gives the DuPage County Sheriff's Department a citation option for "loud and raucous" amplified noise in unincorporated areas of the county.

The ordinance carves out exemptions for events on permits and for "sounds originating from the normal and intended use of the recreational facilities of schools, colleges and public parks between the hours of 9 AM and 11 PM." The ordinance directs that certified copies be sent to the DuPage County Sheriff, the DuPage County State's Attorney, and the Chief Judge of the 18th Judicial Circuit Court. Within incorporated municipalities (Naperville, Wheaton, Downers Grove, etc.) the city or village noise ordinance and local police, not the county, handle enforcement.