Walla Walla County, WA Animal Ordinances: Breed Restrictions (2026)

Rather than list restricted breeds, Walla Walla County Code Chapter 6.04 regulates dogs by documented behavior. Section 6.04.350 makes it unlawful for an owner to permit a dog, in or out of a dog control zone, to unprovoked inflict a bite on a human or domestic animal or to chase or approach a person on a public street, sidewalk, or ground in a menacing fashion; a court finding of "committed" declares the dog a potentially dangerous dog for purposes of RCW Chapter 16.08, and the owner must then post the property warning visitors of the risk.

Section 6.04.360 declares a dog "dangerous" where it inflicts severe unprovoked injury on a person, kills a domestic animal unprovoked off the owner's property, or, having already been found potentially dangerous with notice to the owner, again aggressively bites, attacks, or endangers a person or animal. Both sections route violations through Section 6.04.410's penalty table: a potentially-dangerous finding costs the owner one hundred twenty-five dollars for a first offense and two hundred fifty dollars for the second and every offense after. A separate paragraph in Section 6.04.410 sets minimum fines of seventy dollars on a first commitment, one hundred fifty on a second, and two hundred fifty on a third or later commitment, none of which the court may reduce, defer, or suspend. Enforcement runs through the Sheriff's Office, animal control officers, and humane officers under Section 6.04.400.