San Marcos, CA Animal Ordinances: Breed Restrictions (2026)

The City of San Marcos follows California state law regarding dangerous dogs and does not maintain breed-specific restrictions. Under California Food and Agricultural Code Sections 31601–31683, cities are prohibited from banning specific dog breeds. Instead, the law focuses on individual dog behavior. A dog may be declared potentially dangerous if it has bitten a person without provocation, chased people in a menacing manner on two or more occasions within 36 months, or killed or injured a domestic animal off the owner's property on two or more occasions.

A dog declared vicious must be kept in a secure enclosure with posted warning signs and may be required to be muzzled and on a leash when off the property. The owner must carry liability insurance of at least $50,000 for vicious dogs. San Diego County Animal Services handles dangerous dog investigations and hearings in San Marcos. While the city has no breed bans, individual HOAs and landlords may impose breed restrictions in their own rules, though these are private agreements rather than municipal law.