Noise Ordinances in Missouri (2026)

Cass County Code § 205.670 makes it an offense to unreasonably and knowingly disturb or alarm another person by loud…

Clay County cities set their own quiet hours, generally 10 p.m. to 7 a.m. Beneath every city and the unincorporated…

Columbia, Missouri sets an 11 p.m. to 7 a.m. curfew on shouting, singing, whistling and other verbal noise plainly…

Florissant's general noise ordinance bans loud, unnecessary or unusual noise that disturbs neighborhood peace, and sets…

Independence bars yelling, shouting, hooting, whistling, or singing on public streets that's plainly audible between…

Jackson County bans yelling, loudspeakers, and loud noise near homes between 10 p.m. and 7 a.m. countywide, though…

Kansas City sets lower nighttime sound limits than daytime under its noise code, cutting the allowable residential dBA…

Kirkwood's disturbing-noises ordinance makes it a violation to run a radio, TV, phonograph or similar device loud…

Lee's Summit bans noise disturbances between 10:00 p.m. and 7:00 a.m. under City Code Sec. 17-254, covering amplified…

O'Fallon Code § 215-237(L) sets a lower nighttime noise ceiling for residential areas: 55 dB from 7:00 a.m. to 10:30…

Springfield bars sound-producing devices in residential districts from 11:00 p.m. to 7:00 a.m. once the noise crosses…

St. Charles County sets a stricter noise standard between 10:00 p.m. and 8:00 a.m. than during the day, making loud…

St. Louis defines nighttime hours as 10 p.m. to 7 a.m. and requires stationary noise sources in residential Districts A…

St. Louis County does not set fixed quiet hours; instead SLCRO §716.073 makes it unlawful at any time to play any…

Independence prohibits erecting, demolishing, altering, or repairing buildings between sunset and sunrise, allowing…

Construction hours in Clay County are set city by city, not by the state or county. Liberty, Gladstone, and Kearney…

Columbia, Missouri limits noisy building, street and utility construction to 7 a.m.-7 p.m. on weekdays and 9 a.m.-5…

Florissant limits noisy exterior construction, demolition, alteration or repair work to 7:00 A.M.-8:00 P.M. Monday…

Jackson County caps construction and demolition noise to 7 a.m.-7 p.m. weekdays; work outside that window without a…

Jefferson County's UDO exempts temporary construction noise and vibration from its quantitative performance standards…

Kirkwood limits noisy exterior construction, demolition or repair work to 7:00 a.m. to 8:00 p.m. Monday through…

Lee's Summit bars construction, drilling, and demolition noise across residential property lines from 10 PM to 7 AM…

O'Fallon Code Section 500.420 restricts construction work to set daily windows that shift with the season, running…

Springfield limits building erection, demolition, alteration, repair, and street excavation in residential districts to…

St. Louis bars construction, demolition and excavation noise within 1,000 feet of homes before 6 a.m. and after dusk…

Construction equipment is exempt from the county's noise limits only when run during daytime hours, 7:00 a.m. to 10:00…

Kansas City's noise code does not apply to construction work at all: no decibel limit and no nighttime cutoff for…

St. Charles County bans keeping a habitually barking dog or noisy animal, defined by set time thresholds for incessant…

Persistent barking in Clay County is a nuisance handled by each city's animal control and ordinance. Missouri's peace…

Columbia, Missouri (Boone County) bans keeping a dog that habitually barks, howls, or yelps enough to annoy neighbors…

Florissant makes it unlawful under Section 205.065 to keep a dog or any other animal that emits barking or other noise…

Independence law treats a dog or cat that barks, howls, meows, or yelps frequently and habitually as a public nuisance…

In unincorporated Jackson County, repeated howling, barking, or whining that unreasonably disturbs neighbors is a…

Jefferson County bars dogs kept in the unincorporated area from howling or barking continually beyond the property…

Kansas City bans keeping any animal whose noise is so loud, continuous or untimely it disturbs a neighbor. Only a…

Kirkwood folds barking dogs and noisy pets into its general noise ordinance. Section 17-69 bans any noise that…

Lee's Summit makes it a noise violation to own or harbor a dog, cat, bird or other animal that frequently or…

O'Fallon's noise ordinance singles out barking dogs and other noisy animals as a violation when the sound is frequent…

Springfield's noise code bans keeping any animal, bird, or fowl whose frequent or long, continued noise disturbs the…

St. Louis bans keeping any animal, bird, or fowl whose frequent noise disturbs neighbors' comfort and repose, with a…

St. Louis County outlaws a dog that 'habitually barks' enough to disturb the peace of an ordinary, reasonable neighbor…

Jackson County bans running a noise-creating leaf blower, power fan, or other gas-engine device between 7:00 p.m. and…

Kansas City bans lawn and garden tools, including leaf blowers, on residential property between 10 p.m. and 7 a.m…

Lee's Summit bars outdoor power tools such as leaf blowers, lawn mowers, saws, sanders and snowblowers from running in…

St. Louis exempts lawn care equipment, including leaf blowers and mowers, from its citywide noise limits only from 7…

Independence has no gas-powered leaf blower ban; the equipment is exempt from noise limits in residential districts…

Kirkwood requires a special permit from the Mayor and City Council before anyone plays a radio, loudspeaker or sound…

Amplified music in Clay County is governed by each city's noise ordinance and Missouri's peace disturbance law, RSMo…

Columbia, Missouri bans playing amplified music or any sound-producing device outdoors so it disturbs neighbors; sound…

Florissant bars using loudspeakers, sound amplifiers or similar devices to cast advertising sound onto public streets…

Outdoor sound sources on private property in Independence can't exceed 60 dBA by day or 50 dBA overnight at a…

Jackson County bans unreasonably loud and raucous loudspeakers, amplifiers, and PA systems in residential and…

Jefferson County presumes music, speech, or noise disturbs the peace once it is plainly audible more than fifty feet…

Portable amplified music or sound equipment on Kansas City streets, sidewalks, and public spaces can't be plainly…

Lee's Summit bans amplified sound from radios, speakers or loudspeakers between 10 p.m. and 7 a.m. wherever it crosses…

In O'Fallon's parks and declared festival districts, amplified music and sound equipment cannot exceed 75 decibels…

Springfield, Missouri bars sound amplification systems from disturbing neighbors and cuts them off entirely from 11:00…

St. Charles County caps musical instruments and amplified sound equipment in county parks at 75 decibels for ten…

St. Louis caps amplified sound on public property at audible beyond 75 feet and bars private-property playback louder…

County code caps stationary sound sources, including amplified music equipment, at fixed decibel levels measured at the…

Buildings sited within Columbia Regional Airport's 65 Ldn noise contour must achieve a 25-decibel interior noise…

Independence bars operating any aircraft, including helicopters, over the City if it produces noise exceeding 87 dBA at…

St. Louis County's Noise Control Code exempts an aircraft's actual flight and pre-takeoff engine run-up from its…

O'Fallon's noise ordinance does not regulate aircraft: § 215.237(M)(7) expressly exempts 'all noises coming from the…

In unincorporated Greene County's M-1 Light Manufacturing District, noise from any on-site operation, other than…

Jefferson County's Unified Development Ordinance caps data center noise at 55 dBA in the daytime and 50 dBA overnight…

Boone County caps commercial wind turbine (WECS-C) noise at 50 dBA during the day and 40 dBA at night, measured at the…

Cass County's Wind Energy Conversion Overlay District ordinance, § 400.391(K)(2), caps wind turbine noise at fifty dBA…

In Columbia's IG industrial-general zoning district, Boone County, noise measured at the property line may not exceed…

In unincorporated Jackson County, industrial-zoned uses must operate so noise (and vibration, radiation, glare) from…

Kansas City caps outdoor sound at 60 dBA (day) and 55 dBA (night) at residential property lines, 45/40 dBA indoors, and…

Lee's Summit sets numeric decibel ceilings by receiving land use under City Code Sec. 17-256: 55 dba by day and 50 dba…

O'Fallon sets objective decibel ceilings by zoning district and time of day: 55/50 dB in residential zones, 65/60 dB in…

County code sets numeric decibel ceilings by zone, with industrial and light-industrial properties allowed louder sound…

St. Louis caps stationary noise sources by zoning district and time of day, from 55 dB(A) daytime near "A" through "E"…

St. Louis County caps stationary noise sources at set dB(A) levels by land-use zone and time of day, with lower…

Springfield's Land Development Code bars every operation, industrial and commercial included, from creating noise that…

Independence bans loud exhaust cutouts and requires an effective muffler on every motor vehicle, and separately bans…

St. Louis County's noise rule for ATVs is a location ban, not a decibel limit: Section 716.078 makes it a disturbance…

Cass County Code Section 380.140(B) bans muffler cutouts and requires every motor vehicle to run a properly attached…

Columbia, Missouri requires a working muffler on every motor vehicle, bans engine brakes citywide, and caps vehicle…

Florissant bans muffler cutouts outright and requires every motor vehicle to run a properly attached muffler that…

Jackson County bans vehicle stereos and boomboxes plainly audible at 50 feet in public, commercial, or industrial…

Jefferson County's Traffic Code bans muffler cutouts and requires every motor vehicle on unincorporated county roads to…

Kansas City bans plainly-audible exhaust noise from cars and motorcycles at night on slow streets, caps vehicle stereo…

Kirkwood Code § 14-356 bans muffler cutouts and requires every motor vehicle to run a properly attached muffler quiet…

Lee's Summit caps motor vehicle and motorcycle noise on public roads under City Code Sec. 17-257: 84 to 92 dba…

O'Fallon requires every vehicle's exhaust to run through a properly attached muffler sized to quiet the exhaust as…

Springfield, Missouri bars operating a vehicle sound system so loud it's plainly audible 50 feet away, and separately…

St. Charles County requires every motor vehicle to run a properly attached muffler and bans cutouts, prohibiting…

Vehicle noise in St. Louis is regulated under SLRC Chapter 17 and state RSMo 307.170. Modified exhaust, loud stereos…