All dogs in Washington County are required by law to be licensed. Cats and other animals are not licensed in our county.

All dogs must be licensed at :

  • 6 months of age, or
  • when they have permanent canine teeth, or
  • within 30 days of acquisition, or
  • within 30 days after new residents move into Washington County.

A license is required even if the dog is always on the owner’s property, is always indoors, or lives on a farm. Dogs are required by law to wear their metal license tags whenever they’re off their owner’s property.


  • Buying a license for your dog isn’t just the law – it can save your dog’s life.
  • When local residents find stray dogs, they can call Animal Services. With the license numbers, our staff can give the dog finder your contact information. In that case, your pet will never even have to come to the shelter.
  • We will contact you right away if a good Samaritan brings your dog to the shelter if your dog is wearing his license tag. Last year we reunited over 1100 stray dogs with their owners.
  • When an Animal Control Officer finds a roaming dog with a license, the officer calls the shelter. The officer may be able to take your dog right back to your home. 
  • If your dog is found injured and wearing its license, Animal Control Officers will attempt to obtain emergency medical attention for it and contact you with the details.
  • If your dog is impounded and is current on its Washington County dog license, then the impound fee for a first offense is only $10.00. That compares to an impound fee of $60.00 for a first offense on an unlicensed dog. 
  • We use funding from our dog licenses to support our Animal Services staff. Our staff takes care of stray animals, protects neighborhoods like yours from dangerous dogs, and investigates dog bite complaints.
  • Dog licensing fees help support the County’s Animal Services program, and that program is good for people and pets. We provide a safe shelter for homeless animals, provide education and outreach in the community, investigate cases of cruelty and neglect, and protect neighborhoods like yours from dangerous dogs.


Have a dog under 6 months old? Get a puppy license! By getting a puppy license, you will receive all the benefits of having an adult dog license. And, as your puppy turns 6 months old, you will receive a reminder in the mail letting you know it's time to get an adult license. The cost of a license for dogs less than 6 months of age or if their permanent canine teeth haven't come in is free!


Purchasing or renewing a license is easy. You can do it online, by mail or at the shelter.


To purchase your license using the Internet, see our information on online dog licensing. This is generally the fastest and easiest way to take care of your dog's licensing requirement, whether it is a renewal for a dog who has already been licensed in Washington County previously or for a brand new license. There is no additional fee to license your pet online. 

BY MAIL: To purchase a license, renew a license, or change your address by mail,

  • Download and complete the Application Form
  • Attach a copy of the dog’s rabies vaccination certificate
  • Attach a copy of the dog’s sterilization certificate if you are applying for the discounted license rate.

Mail it to:
Washington County Animal Services
1901 SE 24th Avenue
Hillsboro, Oregon 97123


We also welcome you to come by the shelter to pay for your dog license.

(Shelter hours are 9:00 am to 6:00 pm Mondays, Tuesdays, Thursdays, Fridays and Saturdays; noon to 6:00 pm Wednesdays)



Most of the veterinarians in Washington County sell licenses at their offices. When you get your rabies shot, you can ask your veterinarian for a license at that time.


There are fines of up to $500 if you fail to obtain a dog license or if you own or are keeping an unlicensed dog. We do door-to-door license compliance checks and do enforce this animal control laws and ordinances of our County. 


Animal Services
  1901 SE 24th Avenue  
  Hillsboro, OR 97123-7920
  Directions and map




Animal Shelter



(503) 846-7041


(503) 846-7074


Animal Services