Winnebago County, IL Noise Ordinances: Construction Hours (2026)
Construction hours in Winnebago County, IL, sometimes called construction noise rules or contractor work-hour ordinances, set when contractors can run power tools, hammers, and heavy equipment.
Key Facts
- Governing law
- Winnebago County Noise Ordinance, Sec. 50-297–303
- Construction exemption
- Sec. 50-300(2), any distance ≥100 ft
- Quiet hours (non-exempt noise)
- 10 p.m.–7 a.m. Sun–Thu
- Weekend quiet hours
- 11:59 p.m.–7 a.m. Fri/Sat
- Adopted
- Ord. No. 2025-CO-090, Dec. 11, 2025
Summary
Winnebago County's noise ordinance exempts construction and repair work from its rules entirely, so there is no county-imposed quiet-hours window for job sites.
The following sources of noise are exempt from application of this division: ... (2) Noise generated by agricultural, industrial, construction, repair, or remodeling work where the noise from such can be heard from a distance of 100 feet or more from the source of the noise; ...
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 64).
Full Breakdown
Winnebago County's Noise Ordinance (Sec. 50-297 et seq., adopted December 2025) bars loud sound amplification devices and instruments between 10:00 p.m. and 7:00 a.m. Sunday through Thursday and 11:59 p.m. to 7:00 a.m. Friday, Saturday, and state/federal holidays. But construction work is carved out of the whole division: Sec. 50-300(2) exempts "noise generated by agricultural, industrial, construction, repair, or remodeling work" whenever it can be heard 100 feet or more from the source, which covers virtually all job-site noise. That means the county sets no specific start/stop clock for construction crews in unincorporated Winnebago County; the exemption applies regardless of time of day or night. The rule applies only outside incorporated cities and villages, since Sec. 50-299 limits the division to unincorporated county territory.
Violations & Fines
Not applicable to construction noise itself: the activity is exempt from the noise division. A contractor could still be cited under other nuisance or public-safety provisions if work creates a separate hazard.
Frequently Asked Questions
Can I run construction equipment at night in unincorporated Winnebago County?
Do the county's 10 p.m.–7 a.m. quiet hours apply to job sites?
Sources & Official References
Other rules in Winnebago County
How Winnebago County compares: Cities with the Strictest Construction Hours·Compare Winnebago County to another location·View the Illinois noise ordinances overview
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