Washington County, OR Animal Ordinances: Dog Leash Laws (2026)

' The chapter builds out the rest of the restraint picture around that single sentence. 240 separately bars leaving any animal unattended while tethered or tied in a public right-of-way, including sidewalks, trails, picnic areas, streets, parking lots, or outside a business; that is a Class D civil infraction. 235 requires owners to keep dog feces off other people's property, with immediate removal into a waste container as the only listed defense; violating it is also a Class D civil infraction. None of these sections apply inside Hillsboro, Beaverton, Tigard, Tualatin, Sherwood, Forest Grove, Cornelius, King City, North Plains, Banks, or Gaston.

Washington County Code governs only the unincorporated area, and each of those cities enforces its own leash ordinance. 12 civil-infraction hearings process: an enforcement officer issues a notice of civil infraction, and a hearings officer adjudicates any contested case. 210's Schedule of Fines, a Class C civil infraction carries a $160 presumptive fine (an $80 minimum, up to $500 for an individual or $1,000 for a corporation), while the Class D infractions for tethering and dog waste carry a $110 presumptive fine ($60 minimum, up to $250 for an individual or $500 for a corporation).