Naperville, IL Animal Ordinances: Breed Restrictions (2026)
Key Facts
- Basis
- Behavior, not breed
- Leash Limit
- Max 6 feet in public
- Insurance
- $100,000 liability coverage required
- Appeal Window
- 7 days to Police Chief
Summary
Naperville has no breed ban; instead any dog individually declared dangerous after an investigation must be confined, leashed with a 6-foot leash, muzzled in public, and insured for $100,000.
Confinement: It is unlawful for any person to keep or maintain any dog which has been found to be a dangerous dog unless such dog is kept in an enclosure. In addition, it is unlawful for any person to keep or harbor a dangerous dog on a porch or patio or in any part of a house or building that would allow the dog to exit such structure on its own volition.2.2.Leash Requirement: It is unlawful for any owner or keeper of a dangerous dog as defined by this chapter to permit the dog to leave the premise of its owner or enter any public way when not under control by a leash of no more than six (6) feet in length.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 101).
Full Breakdown
Naperville doesn't restrict pit bulls or any other breed by name. Under § 10-4-5-5, an animal control officer or police officer investigates a specific dog's behavior, attacks, menacing chases, bites, and can declare it dangerous after written notice, with a right to appeal to the Police Chief within seven days. Once declared dangerous, the dog must live in a secure enclosure, wear a muzzle and a leash no longer than six feet in public, carry $100,000 in liability insurance, be microchipped, and display 'Beware of Dangerous Dog' signage, subject to annual inspections.
Violations & Fines
Failing to confine, muzzle, leash, insure, or register a declared dangerous dog is unlawful; each violation or failed annual inspection draws a fine of $100 to $500 per day the noncompliance continues.
Frequently Asked Questions
Does Naperville ban pit bulls or other breeds?
What must an owner do once a dog is declared dangerous?
Sources & Official References
Other rules in Naperville
How Naperville compares: Cities with No Dog Breed Restrictions·Compare Naperville to another location·View the Illinois animal ordinances overview
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