10 rules for unincorporated Kootenai County, Idaho.
Verified from official government sources
Unincorporated Kootenai County has no fixed clock-hour quiet-hours ordinance. Noise is handled under Idaho's disturbing-the-peace statute (18-6409). Cities like Coeur d'Alene, Post Falls and Hayden set their own hourly quiet limits, so check your city code first.
Idaho Code 18-6409(1)
Every person who maliciously and willfully disturbs the peace or quiet of any religious gathering, house of worship, neighborhood, family, or person, by loud or unusual noise... is guilty of a misdemeanor.
Kootenai County does not set countywide construction-hour limits for unincorporated areas; loud construction is judged under Idaho's disturbing-the-peace statute. Cities such as Coeur d'Alene set their own construction-noise windows, so confirm your city's code before early or late work.
Persistent barking that disturbs neighbors is handled through Kootenai County animal control and Idaho's disturbing-the-peace statute. There is no countywide decibel test for barking; loud or unusual noise disturbing a neighborhood, family or person is a misdemeanor under Idaho Code 18-6409.
Idaho Code 18-6409(1)
Every person who maliciously and willfully disturbs the peace or quiet of any religious gathering, house of worship, neighborhood, family, or person, by loud or unusual noise... is guilty of a misdemeanor.
Kootenai County has no ordinance banning or time-restricting leaf blowers. Their use is limited only by Idaho's general disturbing-the-peace statute (18-6409). Incorporated cities may set their own equipment-noise or quiet-hour rules that reach leaf blowers.
Unincorporated Kootenai County relies on Idaho's disturbing-the-peace statute for loud amplified music. In Coeur d'Alene, city code 5.24.030 bans public sound-amplification systems that are plainly audible 50 feet away, with a $75 first-violation fine.
Coeur d'Alene Municipal Code 5.24.030
No person shall operate... any sound amplification system on a street, highway, alley, sidewalk, parking lot, driveway, park, beach, motor vehicle or public right of way... so that the sound is plainly audible at a distance of fifty feet (50') or more from the sound amplification system.
Kootenai County's land-use code recognizes a Noise Compatibility Area around the Coeur d'Alene Airport, defined as land within the 65 DNL day-night sound level contour in the current airport master plan. Flight operations themselves are regulated by the FAA, not the county.
Kootenai County Code 8.9.303
"Noise Compatibility Area" means land surrounding the Coeur d'Alene Airport within the 2028 sixty five (65) decibel day-night average sound level (65 DNL) noise contour delineated in the then current airport master plan.
Industrial noise in unincorporated Kootenai County is controlled mainly through zoning and land-use standards rather than a countywide decibel ordinance. Nuisance and disturbing-the-peace rules also apply. Airport-area industrial uses must respect the county's noise compatibility area.
Kootenai County's clearest numeric decibel limits apply to boats: Idaho Code 67-7038 caps motorboat noise at 88 dBA (post-1995) on a stationary test and 75 dBA on lakes over 500 feet wide. There is no general land-based decibel ordinance for unincorporated areas.
Idaho Code 67-7038(3)
It is unlawful... to operate... any motorboat... in such manner as to exceed the following sound levels: (a) For motorboats manufactured on or after January 1, 1995, a noise level of 88dB(A)... (b) For motorboats manufactured before January 1, 1995, a noise level of 90dB(A).
Outdoor concerts, parties and events in unincorporated Kootenai County are limited by Idaho's disturbing-the-peace statute, not a county event-noise decibel rule. Cities apply their own audibility standards, and large gatherings may need a county special-event permit.
Kootenai County directly regulates watercraft noise: county code 6.2.105 requires every motorboat on county waters to have a working muffler and prohibits cutouts or exhaust amplifiers. Idaho Code 67-7038 caps boat noise at 88 dBA. On-road vehicle noise falls under Idaho muffler law and disturbing-the-peace.
Kootenai County Code 6.2.105
It is unlawful to operate any motor driven watercraft on the public waters within Kootenai County unless it is equipped with a muffler or muffler system in good working order and in constant operation, effectively installed to prevent excessive or unusual noise.
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