Chicago, IL Animal Ordinances: Breed Restrictions (2026)
Key Facts
- Legal test
- Conduct, not breed or appearance
- Governing sections
- MCC § 7-12-045, § 7-12-050
- Fine range
- $500 to $1,000 plus impoundment
- Jail exposure
- Up to 6 months for noncompliance
- Citywide breed bans
- None
Summary
Chicago's Municipal Code defines a dangerous or vicious animal by what it does, biting, attacking, fighting, or guarding, never by breed; no dog breed is banned or restricted citywide.
"Dangerous animal" means an animal meeting any one of the following criteria: (1) any animal which bites, inflicts injury on, kills or otherwise attacks a human being or domestic animal without provocation on any public or private property; or ... (4) Any dog that is used as a guard dog; or (5) Any animal which has been found to be a vicious dog under state law.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 S-74: Current through Council Journal of June 17, 2026).
Full Breakdown
Chicago Municipal Code § 7-12-045 defines a "dangerous animal" using five behavior-based criteria: unprovoked bites or attacks on a person or domestic animal, repeated aggressive chasing without provocation, ownership for animal fighting, use as a guard dog, or having been found a "vicious dog" under Illinois state law. None of these tests reference breed, size, or appearance. Any dog meeting the definition, regardless of breed, triggers the secure-enclosure, muzzle, and insurance requirements of § 7-12-050. Owners of guard dogs and state-law "vicious dogs" must comply automatically, without a hearing, under § 7-12-050(g).
Violations & Fines
Owners who skip the required enclosure, muzzle, leash, or liability insurance face a fine of $500 to $1,000 plus impoundment of the animal under § 7-12-051; failing to come into compliance within 7 days of impoundment can mean up to 6 months in jail.
Frequently Asked Questions
Does Chicago ban pit bulls or other dog breeds?
What happens if my dog is declared dangerous?
Sources & Official References
Other rules in Chicago
How Chicago compares: Cities with No Dog Breed Restrictions·Compare Chicago to another location·View the Illinois animal ordinances overview
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Breed Restrictions in Nearby Cities
How other cities in Cook County handle breed restrictions.