Jackson County, MO Public Conduct: Loud Party Ordinance (2026)

Chapter 55's disorderly conduct rule works in two layers. Section 5531, Disorderly Conduct, first lists the acts that break the peace: threatening or abusive language, actions that annoy or obstruct others, causing a crowd to collect, and, most relevant to a loud party, shouting or making noise during the nighttime to the annoyance or disturbance of any considerable number of persons under subsection (d). A second Section 5531, titled Permitting Disorderly Conduct and originally adopted the same day by Ordinance 907, Section 5, reaches the host rather than the guests: no person may knowingly permit conduct of the kind described in the Disorderly Conduct section in or on any house or premises occupied by that person as a residence and under that person's control, where others in the vicinity are likely to be disturbed. That is the county's host-liability hook: if a homeowner or tenant knows a gathering on their property has crossed into disorderly, nighttime noise and keeps hosting it anyway, the host is chargeable independently of any citation issued to the noisy guests.

Both sections trace to the original 1981 ordinance and were amended by Ordinance 2106 in 1992. Neither provision sets a numeric decibel threshold; each turns on whether the noise or conduct disturbs a considerable number of persons or the immediate vicinity, a judgment the responding deputy documents in the citation. Enforcement runs through the Jackson County Sheriff's Office for unincorporated areas, since Kansas City, Independence, and the county's other cities enforce their own disorderly conduct codes.