Public Conduct in St. Charles County, MO (2026)
6 rules for unincorporated St. Charles County, Missouri.
Verified from official government sources
Public Urination
Unincorporated St. Charles County treats public urination and defecation as a form of illegal indecent exposure. Section 210.160 bans "excretory functions" performed in any public place, alongside nudity and sex acts, and makes a violation a Class A misdemeanor carrying up to a year in the County jail.
St. Charles County Public Indecency Ban
Significant RestrictionsSt. Charles County Code § 210.160
Whoever, in a public place, as defined in Subsection (A), knowingly or intentionally does any of the following: 1. Engages in acts of, or simulated acts of, sexual intercourse, masturbation, sodomy, bestiality, oral copulation, sadomasochism, excretory functions or other ultimate sexual acts; or 2. Appears in a state of nudity; or 3. Caresses or fondles the buttock, anus, vulva, female breasts ...
Skateboarding Rules
St. Charles County confines skateboarding, roller skating and in-line skating in its parks to paved trails or areas the Parks Director specifically designates and posts, under County Code § 250.390(B). Riders on those trails must still follow the general trail-use standard of care and yield to other users, or face a Class A misdemeanor.
St. Charles County Park Skateboarding Rules
Light RestrictionsSt. Charles County Code § 250.390(B)
B. Roller Skating, Skateboarding, In-Line Skating. Roller skating, skateboarding and in-line skating shall be confined to paved trails or those areas specifically designated and posted for such purposes by the Director.
Loud Party Ordinance
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.
St. Charles County Peace Disturbance Law
Some RestrictionsSection 375.700, St. Charles County Code (Offenses Code)
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.
Loitering Rules
St. Charles County bans loitering in its parks two ways: § 250.430 forbids sitting or lounging on vehicles without the owner's permission and sleeping or 'protractedly' lounging on benches or park structures, while § 250.445 bars anyone registered for certain child sex offenses from entering a park without the Parks Director's written permission.
St. Charles County Park Loitering Rules
Some RestrictionsSt. Charles County Code §§ 250.430, 250.445(A)
Section 250.430. Loitering Prohibited. No person shall sit or lounge on vehicles without the permission of the owners. No person shall sleep or protractedly lounge on the seats or benches of other structures or improvements. Section 250.445(A): Any person who is required to register with the Chief Law Enforcement Official of the County in which such person resides pursuant to the provisions of ...
Outdoor Smoking Restrictions
St. Charles County's Smoke-Free Air Act of 2018 doesn't stop at the doorway: Charter § 10.803.4 bans smoking within 15 feet of any entrance, operable window, or ventilation system of an enclosed area where smoking is already prohibited, and the buffer applies countywide, incorporated and unincorporated alike. Open-air patios with no more than two solid walls are carved out, as long as the smoke doesn't drift back inside.
St. Charles County Outdoor Smoking Buffer Rule
Some RestrictionsSt. Charles County Charter § 10.803.4
Smoking shall be prohibited in outdoor space within a distance of fifteen (15) feet outside entrances, operable windows, and ventilation systems of enclosed areas where smoking is prohibited. "Entrance" shall mean an entryway primarily used by the public as a means to enter or exit a public place from a public street or public sidewalk.
Public Alcohol Use
St. Charles County allows drinking in its parks under County Code § 250.190, but bans public intoxication outright, caps individual alcohol containers at one gallon without the Parks Director's written authorization, and lets the Director post any facility or area completely off-limits to alcohol. Concession alcohol sales must stop one hour before closing time.
St. Charles County Park Alcohol Rules
Some RestrictionsSt. Charles County Code § 250.190(A), (C)-(F)
A. General Provision. The possession, transportation and consumption of intoxicating beverages shall be permitted in County parks subject to the restrictions provided in this Chapter or of applicable State law. ... C. Drunkenness Prohibited. No person shall be in a state of intoxication on any County park property. D. Individual Beverage Containers Limitation. No person shall possess, bring or ...
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