Quiet hours in Jefferson County, CO — also called the noise ordinance, nighttime noise rules, or residential quiet time — define the hours during which excessive noise is prohibited.
In unincorporated Jefferson County, noise from a residential property line may not exceed 55 dB(A) from 7:00 a.m. to 7:00 p.m. or 50 dB(A) from 7:00 p.m. to 7:00 a.m. Nighttime is the effective quiet period.
The county's Noise Abatement Policy (Part 3, Ch. 1, Sec. 1) sets time-of-day sound caps mirroring Colorado's state statute. For a non-vehicular source in a residential zone, sound measured 25 feet from a property line must stay at or below 55 dB(A) during the day (7 a.m.-7 p.m.) and 50 dB(A) overnight (7 p.m.-7 a.m.). Periodic, impulsive, or shrill noises are unlawful at 5 dB(A) below those limits. Incorporated cities like Lakewood, Arvada, and Golden set their own quiet-hour rules.
Class 2 Petty Offense; $30 fine per offense, rising $30 per recurrence up to a $300 maximum, plus court costs (CRS 16-2-201 penalty assessment).
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Jefferson County, CO
Jefferson County requires proper care for every animal and treats hoarding-type conditions (inadequate food, water, shelter, sanitation, or feces accumulatio...
Jefferson County, CO
In Jefferson County, as statewide, it is illegal to intentionally feed big-game wildlife. Colorado Parks and Wildlife prohibits placing feed, salt, or attrac...
Jefferson County, CO
Jefferson County has no ordinance banning backyard compost piles, and residential composting is allowed. There is no county-run curbside compost mandate for ...
Jefferson County, CO
Jefferson County has no general county ban on residential artificial turf; check your HOA and city. Colorado's HB22-1151 turf-replacement program funds swapp...
Jefferson County, CO
Colorado protects water-wise landscaping. Under CRS 38-33.3-106.5, an HOA may not prohibit xeriscape or drought-tolerant vegetative landscapes on property a ...
Jefferson County, CO
Colorado law lets residents of single-family homes and buildings of four or fewer units collect rooftop rainwater in up to two rain barrels totaling 110 gall...
See how Jefferson County's quiet hours rules stack up against other locations.
Help us keep this page accurate. If you notice an error or outdated information, let us know.