Information for Dog Owners

Oregon Laws for Dog Owners

ORS 609.100 - Dog license required:
All dogs within Columbia County are required to be licensed at the age of 6 months, or 30 days after having resided within Columbia County.

ORS 609.095 - Dog is a public nuisance:
   1. Is a potentially dangerous dog as defined under ORS 609.098 (a) while off premises menaces a person (b) inflicts physical injury on a person, (c) inflicts or kills a domestic animal.
   2. Chases vehicles or persons
   3. Damages or destroys property of others
   4. Scatters garbage
   5. Trespasses on private property
   6. Disturbs any person by frequent or prolonged noise
   7. Is a female in heat and running at large.

ORS 609.098 - A dog is considered dangerous if it:
A. Acts as a potentially dangerous dog per ORS 609.095 after having been convicted of being a potentially dangerous dog. Maintaining a dangerous dog is a criminal offense.

ORS 609.150 Harming or chasing livestock
(1) Any dog which, while off the premises owned or under control of its owner, kills wounds or injures livestock is a public nuisance and may be killed immediately by any person.

ORS 433.345 - Reporting dog bites is required
(1) All animal bites should be reported to the Animal Control Officer or a Police Agency immediately.

ORS 498.102 - Dogs chasing wildlife
No persons shall permit any dog the persons owns to unlawfully hunt, run or track any game mammal or game bird. The animal may be killed by any person authorized to enforce wildlife laws.

ORS 164.065 - Theft of mislaid property
A person who comes into control of property (including a dog) of another commits theft if the person fails to take reasonable measures to restore the property to the owner.

ORS 609.500 - describes Animal Control Officer and duties, Animal Shelter and other legal definitions. 


Columbia County currently has no ordinance relating to stray or lost cats. Animal Control also cannot assist residents with issues involving domestic or feral cats.

Animal Control Quick Links
General Information
Phone Numbers
503-366-4611 Dispatch 503-397-1521 (open 24/7)
Fax: 503-366-4644
Emergencies: Dial 911
Sheriff's Office
901 Port Ave.
St. Helens,

Sheriff's Office open Monday - Friday
8:30am - 5:00pm
Licenses and redemption of lost dogs
8:30 a.m. - 5 p.m. Monday - Friday
Weekends 8:30 - noon and 1-5 p.m.