Columbia, MO Public Health Rules: Rodent Control (2026)
Key Facts
- Governing section
- Code of Ordinances § 11-252
- Vermin harborage defined at
- § 11-251
- Applies to
- residential and commercial lots citywide
- Turf height cap
- 12 inches
- Continuing violation
- separate offense each day
Summary
Every lawn, yard and landscaped lot in Columbia, Missouri, the Boone County seat, must be maintained to prevent 'vermin harborage,' the code's term for conditions that let rats or mice overpopulate a property.
The following requirements related to landscape management on residential and/or commercial properties apply to lawns, yards, gardens, community gardens, urban agricultural crops, agricultural crops, vegetable gardens, native and ornamental landscapes and shall be met to prevent a property from becoming a public nuisance: ... (2) All properties must be maintained to prevent or mitigate against vermin harborage.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 138).
Full Breakdown
Columbia's landscape management ordinance, Code of Ordinances § 11-252, requires every lawn, yard, garden and landscaped lot in the city, inside Boone County, Missouri, to be maintained to prevent or mitigate 'vermin harborage,' defined in § 11-251 as dense vegetation combined with human infrastructure and refuse that causes or could cause a rat or mouse overpopulation. The same section also caps turf height at 12 inches and bars nuisance plants and noxious weeds. It applies to residential and commercial lots alike, with narrow exceptions for managed native landscapes, urban agricultural plots and ornamental beds that still meet upkeep standards. Community development enforces it as a public nuisance.
Violations & Fines
Maintaining a property that creates vermin harborage is an unlawful public nuisance under § 11-253; each day the violation continues counts as a separate offense under § 11-255.
Frequently Asked Questions
What counts as 'vermin harborage' under Columbia's code?
Does this rule cover unincorporated Boone County land?
Sources & Official References
Other rules in Columbia
Compare Columbia to another location·View the Missouri public health rules overview
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