Denver and Colorado Dog Laws: What You Need To Know

Animal Hospital in Denver: closeup of a puppy

Are you thinking about getting a dog? Colorado residents should keep in mind that every county has different dog laws and laws concerning pet ownership. Before you adopt, here’s what you need to know:

Animal Hospital in Denver: a golden small dog

Laws Concerning Cats and Dogs in Colorado

All cats and dogs over the age of six months must be licensed by the county you live in. Licenses are good for one year.

Dogs and cats over the age of six months must be vaccinated for rabies by a licensed Colorado veterinarian, such as those found at Vida Veterinary Care. You will have 30 days to vaccinate. Owners are required to fit their animals with tags showing the vaccination information.  These are typically provided by the vet that vaccinates your pet.

Except for designated areas, dogs must be kept on a leash at all times when not on their owner’s property. Any dog found running loose may be taken to the local animal shelter. Owners can be summoned and possibly fined for failure to abide by the leash law.

Dog owners must keep their dogs from continuous barking, which is considered by the City and County of Denver to be a nuisance. Any owner who receives more than one violation may have his dog or dogs impounded at the local animal shelter and may also face fines.

When not on their own property, dog and cat owners must pick up and properly dispose of pet waste.

For more information about vaccination and licensing, visit