In unincorporated Larimer County all dogs must be kept under restraint; it is unlawful to let a dog run at large. A leash means a tether no more than six feet long, held by a person.
Larimer County Code Sec. 6-76 requires every dog be kept under restraint and prohibits dogs at large countywide. "At large" means not physically controlled by a leash held by a human, or not accompanied by and immediately responsive to its handler. Sec. 6-1 defines a leash as a tether no more than six feet long (longer or retractable leads allowed only for exercise/training). Working stock dogs, licensed-hunter retrieving dogs, and law-enforcement dogs are exempt. Dangerous dogs are separately barred by Sec. 6-79 and by state law C.R.S. 18-9-204.5, under which a dog inflicting bodily injury is a class 2 misdemeanor. Home-rule cities (Fort Collins, Loveland) set their own leash codes.
Dogs-at-large penalty assessment: $40 first offense, $100 second, $150 subsequent. Bodily injury by a dog is a class 2 misdemeanor ($250-$1,000 fine, jail). Intact-dog nuisance adds $100.
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See how Larimer County's dog leash laws rules stack up against other locations.
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