Quiet hours in Waukesha County, WI — also called the noise ordinance, nighttime noise rules, or residential quiet time — define the hours during which excessive noise is prohibited.
Waukesha County sets no countywide quiet-hours ordinance; your city, village or town does. In unincorporated towns the county nuisance and Wisconsin disorderly-conduct law apply. As an example, the City of Waukesha treats unreasonably disturbing noise as a public nuisance, effectively 10 p.m.–7 a.m.
Wisconsin is a MIXED state: cities and villages regulate noise inside their limits, and the county's zoning reaches only consenting unincorporated towns. The Waukesha County Code has no dedicated noise chapter, so there is no county decibel or clock-hour rule. Where no local ordinance applies, Wis. Stat. 947.01 disorderly conduct covers unreasonably loud conduct that tends to provoke a disturbance. The City of Waukesha (county seat) defines noise 'tending to unreasonably disturb the peace and quiet' as a public nuisance under Municipal Code 12.05, with quiet hours generally 10 p.m. to 7 a.m. Check your own municipality.
Disorderly conduct under Wis. Stat. 947.01 is a Class B misdemeanor. Municipal nuisance noise citations carry local forfeitures, typically escalating fines set by your city, village or town.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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