Snohomish County, WA Animal Ordinances: Mandatory Spay/Neuter (2026)
Key Facts
- Applies to
- Dogs declared dangerous (SCC 9.10.020)
- Spay/neuter proof required
- SCC 9.10.040(3)(e)
- Registration deadline
- 15 days after declaration
- Annual fee
- $250 certificate of registration
- Non-compliance result
- Confiscation, gross misdemeanor
Summary
Snohomish County does not require every pet to be spayed or neutered, but SCC 9.10.040(3)(e) makes it a condition of registering a dog that has been officially declared dangerous. The owner must prove the dog is altered before the $250 annual certificate of registration is issued.
(3) The licensing authority is authorized to issue an annual certificate of registration to the owner of a dangerous dog upon payment of a $250.00 registration fee and if the owner presents sufficient evidence of compliance with the following requirements:
(a) that the dog is kept in a proper enclosure of a dangerous dog;
(b) that the owner maintains a policy of liability insurance ... in the amount of at least $250,000 per dog, insuring the owner for any personal injury inflicted by the dangerous dog. ... Snohomish county must be listed as Certificate Holder;
(c) that the dog has been microchipped;
(d) that the dog has been licensed; and
(e) that the dog has been neutered or spayed.
Official source re-checked September 8, 2026: no newer edition of the code had been published (publisher’s edition: current through legislation passed August 12, 2026).
Full Breakdown
020. Once that declaration is made, the owner has 15 days to obtain the certificate from the licensing authority. The licensing authority issues the annual certificate only after the owner pays a $250 registration fee and proves compliance with a full list of conditions: the dog is kept in a proper enclosure built to prevent escape and the entry of small children; the owner carries at least $250,000 in liability insurance naming the county as certificate holder, with no exclusions for off-premises or off-leash injuries; the dog has been microchipped; the dog has been licensed; and, under subsection (3)(e), that the dog has been neutered or spayed.
All five conditions must be met together, not in the alternative. 050 requires the same proof all over again along with the application fee. This spay/neuter condition applies only to the narrow category of dogs the county has formally declared dangerous; it is not a general mandate for the county's pet population, and an unaltered dog that has never been the subject of a dangerous-dog declaration faces no such requirement.
Violations & Fines
Keeping, owning, or maintaining a dangerous dog without a valid certificate of registration is unlawful under SCC 9.10.040(1). If the owner fails to maintain compliance with any condition in SCC 9.10.040(3), including the neuter/spay requirement, the dog is immediately confiscated by the animal control agency under SCC 9.10.090(2)(b), and the owner is guilty of a gross misdemeanor punishable under RCW 9A.20.021. The dog can be destroyed if the deficiency is not corrected within 15 days of notice, unless an appeal is filed with the county hearing examiner under SCC 2.02.125.
Frequently Asked Questions
Does Snohomish County require all dogs to be spayed or neutered?
What else must a dangerous dog's owner prove besides spay/neuter status?
What happens if a declared dangerous dog isn't neutered as required?
Sources & Official References
Other rules in Snohomish County
Compare Snohomish County to another location·View the Washington animal ordinances overview
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