Cook County Chapter 10 requires dogs to be leashed when off the owner's property. Dogs found off-leash can result in fines exceeding $300. Dangerous dogs must be leashed and may require muzzling. The county requires rabies vaccination.
Cook County Code Chapter 10 (Animals) and the Illinois Animal Control Act (510 ILCS 5) require dogs to be under the control of their owner when off the owner's premises. Dogs found off-leash in public spaces in Cook County can result in fines exceeding $300. Any dog that is unleashed, unmuzzled, or unattended while anywhere other than the owner's property may be deemed dangerous. Dangerous dog owners must pay a $50 public safety fine deposited into the county animal control fund, and the dog must be spayed/neutered within 14 days and microchipped. All dogs must have current rabies vaccination. Cook County Animal and Rabies Control enforces these requirements in unincorporated areas.
Off-leash dog: $300+ fine. Dangerous dog determination: $50 public safety fine plus mandatory spay/neuter and microchipping within 14 days.
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See how Cook County's dog leash laws rules stack up against other locations.
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