Macon County, IL Noise Ordinances: Quiet Hours (2026)

Chapter 94's nighttime rule runs from 10 p.m. to 7 a.m., stricter than the 7 a.m. to 10 p.m. daytime window in § 94.06(A). During the curfew, § 94.06(B) bars sound from any noise source that can be heard 100 feet or more from its source, or that exceeds 55 dBA measured at any point on the receiving residential land, with the measurement point fixed at the complainant's property line. The prohibition covers noise made in or upon a house, premises or property owned, possessed or controlled by the responsible person, not only noise crossing the property line outdoors.

Both the daytime and nighttime standards are declared a public nuisance under § 94.06(C), giving the county a nuisance-abatement basis for enforcement in addition to the citation process. For attached multi-family buildings, § 94.06(D) measures at the outer property line of the building rather than at interior unit walls. The curfew applies only within unincorporated residential zoning districts under § 94.04(A); it does not reach commercial, industrial or agricultural land. A landlord or property owner can be cited for a tenant's or guest's overnight noise if the county proves the owner knew or should reasonably have known of it, per § 94.04(B). The Sheriff's Office is the enforcing agency and the State's Attorney's Office prosecutes under § 94.08.