Canyon County, ID Public Health Rules: Rodent Control (2026)

Canyon County treats rodent and vermin harborage as a health-hazard public nuisance under two subsections of Code § 02-01-05. Subsection (2) reaches any condition or use of premises that creates a health hazard by permitting, allowing, or fostering the harboring and nesting of rodents, vermin, or insects, or creating any other type of health hazard to the public. Subsection (7) separately reaches overgrown weeds, grasses, bushes, shrubs, trees, or other plant life grown to a size and condition that provides nesting areas for rodents, vermin, or insects, or that interferes with the free and comfortable use of neighboring property.

Because both subsections sit inside the same Public Nuisances article adopted by Ord. 18-016 in 2018, they carry the same enforcement path: a Code Enforcement Officer administers and enforces the article under § 02-01-07(3), alongside the Canyon County Sheriff. Enforcement under § 02-01-09 starts with a written request for voluntary compliance giving the property owner or occupant ten calendar days to eliminate the rodent-harboring condition, describing the address, parcel number, and the specific nuisance found. If the condition persists, the officer issues a formal order of abatement, and the owner has seven calendar days to appeal to the Board of County Commissioners.

Where the condition presents an imminent threat to public health, the Code Enforcement Officer may skip straight to summary abatement without the ten-day wait. Agricultural operations under generally recognized practices are exempt from this article under Idaho Code title 22, chapter 45. This applies only to unincorporated Canyon County property, not to addresses inside Caldwell, Nampa, or the county's other incorporated cities.