Skip to main content
CityRuleLookup
Key FactsOrdinance TextFull BreakdownViolationsFAQSourcesMore in St. Charles County

St. Charles County, MO Public Conduct: Loud Party Ordinance (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Citation
Section 375.700, County Code
Offense class
Misdemeanor
Applies in
Unincorporated St. Charles County only
Enforced by
St. Charles County Police
Prohibited act
Loud noise that disturbs another person

Summary

St. Charles County criminalizes loud noise that unreasonably and knowingly disturbs or alarms another person under its Peace Disturbance ordinance, Section 375.700: a misdemeanor charge that applies directly to loud, unruly house parties in the unincorporated county.

These county ordinances apply to unincorporated areas of St. Charles County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

A person commits the crime of peace disturbance if: 1. He unreasonably and knowingly disturbs or alarms another person or persons by: a. Loud noise; or ... B. Peace disturbance is a misdemeanor.

View official code

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

Section 375.700 of the County Code makes it a crime to unreasonably and knowingly disturb or alarm another person through loud noise, offensive fighting words, threats, fighting, or a noxious odor. There is no separate "party" or noise-curfew ordinance: this peace-disturbance statute is what St. Charles County Police cite when a house party's music, shouting, or crowd noise draws a neighbor complaint. It applies only in the unincorporated county; incorporated cities like St. Charles, O'Fallon, and St. Peters enforce their own municipal codes. A conviction is a misdemeanor, prosecuted through the County Municipal Court.

Violations & Fines

Loud noise, offensive language, threats, fighting, or a noxious odor that unreasonably disturbs another person is a misdemeanor peace-disturbance charge, enforced by St. Charles County Police in the unincorporated county.

Frequently Asked Questions

Is there a specific noise curfew or party ordinance in St. Charles County?
No. The county cites loud parties under its general Peace Disturbance statute, Section 375.700, which bans loud noise that unreasonably disturbs another person: there is no separate curfew hour or party permit.
What happens if police respond to a loud party complaint?
Officers can cite the person causing the disturbance under Section 375.700; peace disturbance is a misdemeanor prosecuted in the County Municipal Court.

Sources & Official References

Other rules in St. Charles County

Fence Regulations: Height LimitsSome RestrictionsPublic UrinationSignificant RestrictionsSkateboarding RulesLight RestrictionsLoitering RulesSome RestrictionsOutdoor Smoking RestrictionsSome RestrictionsPublic Alcohol UseSome RestrictionsFence Regulations: Retaining WallsSome RestrictionsFence Regulations: Material RestrictionsSome RestrictionsAnimal Ordinances: Veterinary Clinic ZoningSome RestrictionsAnimal Ordinances: Pet Store RulesSome RestrictionsAnimal Ordinances: Mandatory Spay/NeuterSome Restrictions

All St. Charles County rules

Compare St. Charles County to another location·View the Missouri public conduct overview

Get notified when Loud Party Ordinance in St. Charles County, MO changes

We'll email you the moment we detect a change in the code. No spam, unsubscribe anytime.

We'll never sell or share your email. One-click unsubscribe in every email.

See something wrong?

Help us keep this page accurate. If you notice an error or outdated information, let us know.