McLean County, IL Noise Ordinances: Amplified Music & Outdoor Sound (2026)

McLean County Code § 350-43ZZ(3) sets a specific curfew for outdoor amplified sound at breweries and distilleries operating in the unincorporated county: no outdoor amplified sound is permitted after 11:00 p.m. within 500 feet of an R-1 or R-2 residential zoning district or any lot containing a dwelling as a principal use. This sits among the county's brewery/distillery use standards, which also bar loading or distribution activity outside an enclosed building between 9:00 p.m. and 7:00 a.m. when the building is within 500 feet of a residential district or dwelling, under § 350-43ZZ(2).

Beyond the specific 11:00 p.m. cutoff for breweries and distilleries, § 350-43ZZ(6) folds in the county's general performance standards, requiring that no use or activity create any noise in violation of the noise levels specified by the Illinois Environmental Protection Agency, so a brewery's indoor amplified sound and its daytime outdoor operations still must comply with the state's IEPA noise regulations even outside the 11:00 p.m. window. The 500-foot buffer measures from the nearest R-1 or R-2 district boundary or from any lot whose principal use is a dwelling, whichever is closer, so an amplified outdoor concert or event area at a rural brewery near a farmhouse is covered by the curfew even outside a platted residential district.

The rule governs breweries and distilleries in unincorporated McLean County only; Bloomington and Normal regulate amplified sound at venues inside their own city limits under their separate municipal codes.