Dog Leash Laws: Elmhurst vs Naperville

Does DuPage County, IL have a county-wide leash law?

DuPage County Code Ch. 5 (Animals) and 510 ILCS 5 govern dog control county-wide. DuPage County Animal Services directly enforces at-large and leash rules in unincorporated areas. Inside incorporated municipalities (Naperville, Wheaton, Lombard, etc.), the local municipal leash ordinance applies and is enforced by city/village police.

Do I have to register my dog or cat with DuPage County?

Yes. Every dog and cat living in DuPage County must be vaccinated against rabies and carry a DuPage County rabies registration tag. Fees range from $18 (1-year altered) up to $95 (3-year unaltered). Register through DCAS at 630-407-6500 or in person at 2255 Manchester Road, Wheaton.

My dog bit someone in DuPage County — what do I do?

Illinois law and DuPage County Code Ch. 5 require that any domestic animal that bites a person be examined by a veterinarian and observed for signs of rabies (typically a 10-day observation). Report the bite to DuPage County Animal Services at 630-407-6500 as soon as possible.

Who do I call about a dog at large in DuPage County?

For unincorporated DuPage during business hours, call DCAS at 630-407-6500. After hours for unincorporated areas, call the DuPage County Sheriff at 630-407-2400. If the dog is inside an incorporated municipality, call that city or village's police non-emergency line.

Do dogs need to be on a leash in Naperville?

Yes. Dogs must be on a leash no longer than 6 feet when off the owner's property. Dogs on any street, alley, or public place without a leash are considered at large.

Where can dogs be off leash in Naperville?

The Naperville Park District operates designated off-leash dog parks where dogs may be unleashed within fenced areas. All other public areas require leashes.