Sonoma County, CA Animal Ordinances: Cat Rules (2026)
Key Facts
- Registration status
- Voluntary, not required (§ 5-61)
- Registration term
- Valid for life of cat
- Vaccination
- Rabies vaccine required by 4 months
- At-large rule
- None: cats excluded from leash law
- Impound requirement
- Spay/neuter before release (§ 5-67)
Summary
Cat registration in unincorporated Sonoma County is voluntary, not mandatory like dog licensing: owners may register cats for a lifetime tag, but rabies vaccination is still required by age four months.
Any person who owns or keeps any cat over (4) months of age may voluntarily register such cat pursuant to this article.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 64 Update 2).
Full Breakdown
County Code § 5-61 makes cat registration optional, "any person who owns or keeps any cat over (4) months of age may voluntarily register such cat," unlike dogs, which § 5-41 requires to be licensed. A registered cat gets a certificate valid for the cat's lifetime under § 5-64, with no annual renewal. Rabies vaccination is still mandatory under § 5-60 before any registration can issue. The code's "at large" bans in §§ 5-115, 5-117 and 5-118 name only dogs, livestock and exotic animals, cats are not listed, so there is no county leash or confinement requirement for cats specifically.
Violations & Fines
Registration is optional, so an unregistered cat is not itself a violation, but any cat impounded by animal services must be spayed or neutered before release under Section 5-67, at owner expense unless a vet certifies a medical exemption.
Frequently Asked Questions
Do I have to register my cat in Sonoma County?
Can my cat roam free in unincorporated Sonoma County?
What happens if my cat is impounded?
Sources & Official References
Other rules in Sonoma County
California rules heatmap·Compare Sonoma County to another location·View the California animal ordinances overview
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