Oak Park, IL Animal Ordinances: Dog Leash Laws (2026)

Section 5-4-8(A) imposes a general restraint duty on every animal owner in Oak Park, with a narrow carve-out for dogs used for rescue or law enforcement by a government agency. Restraint is defined elsewhere in Chapter 5 to mean secured by leash or lead, confined on the owner's own property, or inside a fenced yard with a fence tall enough to stop the animal jumping or reaching over it. Section 5-4-9(A) adds the public-space leash rule specifically for dogs: it is unlawful for an owner to let a dog use any public street, sidewalk, parkway or public area unless it is on a leash controlled by the owner or another authorized, responsible person, and no leash shall be longer than eight feet in length.

Section 5-4-8(C) makes the restraint duty a strict-liability obligation where a dog attacks, bites, threatens or jumps on a non-consenting person off the owner's own property, meaning intent or carelessness is not something the Village has to prove. Penalties escalate sharply with the outcome. Under section 5-4-8(D), an ordinary restraint violation draws a fine of not less than one hundred dollars and not more than seven hundred fifty dollars. Where the violation results in severe injury or death to a person, the fine jumps to a mandatory minimum of one thousand dollars and can reach ten thousand dollars per offense.

Cats have a narrower carve-out from the leash rule under section 5-4-9(B), which is enforced instead through the separate at-large licensing conditions in that subsection.