St. Charles County, MO Noise Ordinances: Amplified Music & Outdoor Sound (2026)
Amplified music rules in St. Charles County, MO, also called sound permit, PA system, or live music ordinances, set decibel limits, time-of-day restrictions, and when permits are required.
Key Facts
- Noise limit
- 75 decibels for 10 minutes
- Measured from
- 50 feet from the sound source
- Applies in
- St. Charles County parks
- Exception
- Written authorization from the Parks Director
- Penalty
- Class A misdemeanor, up to $1,000
Summary
St. Charles County caps musical instruments and amplified sound equipment in county parks at 75 decibels for ten minutes measured 50 feet away, unless the Parks Director issues written authorization.
Certain Sound Sources Prohibited. No person shall operate or play any musical instrument, radio, stereo, mechanical record or tape player, loudspeaker, public address system or sound amplifying equipment of any kind within the boundaries of any County park in such a manner as to cause the sound emanating therefrom to exceed a loudness of seventy-five (75) decibels for ten (10) minutes from a distance of fifty (50) feet from the sound source or would otherwise cause a peace disturbance without written authorization issued by the Director.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: rev 4863880; v61 updated 2026-05-11; through 05-11-2026).
Full Breakdown
St. Charles County bans playing any musical instrument, radio, stereo, loudspeaker, public address system, or other sound-amplifying equipment inside a county park loud enough to exceed 75 decibels for ten minutes when measured from 50 feet away, or loud enough to otherwise cause a peace disturbance. The rule sits in the County Park Regulations chapter and covers live bands, PA systems, and speakers at outdoor gatherings on county park property. Groups wanting a louder show, like an amplified concert, must get written authorization from the county's Parks Director before the event.
Violations & Fines
Exceeding 75 decibels for 10 minutes at 50 feet, or otherwise causing a peace disturbance, without the Director's written authorization is a Class A misdemeanor punishable by up to a year in jail or a $1,000 fine.
Frequently Asked Questions
Can I play live music at a St. Charles County park?
What happens if the park sound limit is violated?
Sources & Official References
Other rules in St. Charles County
Compare St. Charles County to another location·View the Missouri noise ordinances overview
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