Humane Colorado

Tails on the Tower is back!

Dream of seeing your pet’s adorable face on one of Denver’s most iconic buildings? Don’t just dream it, live it with Tails on the Tower! For a $50 donation, you can see your pet in lights on the Daniels and Fisher Tower on December 13, 2025.

Spots are limited, so get your paws on yours today!

Our Mission

Working with our compassionate community, we will end pet homelessness and animal suffering.

Adoptable Animals

Humane Colorado has a diverse range of adoptable animals, including dogs, cats, rabbits, guinea pigs, and horses. Each animal receives necessary medical care, behavior evaluations, and enrichment to prepare them for a successful transition into a loving family. 

Volunteer Opportunities

Humane Colorado offers a variety of volunteer opportunities to suit different interests and skills. Volunteering provides a rewarding experience for individuals while helping the organization care for animals in need.

Donate Today!

Your donation helps make our community a better place for animals and people.

Thanks to your support, we are able to provide for animals in our care while helping our community thrive through accessible veterinary care and education.

Pet Behavior

The 3-3-3 Rule

New pet – new behavior! What’s normal and what’s not?

The 3-3-3 Rule for shelter pets can help you understand what your pet may be experiencing in their first 3 days, 3 weeks, and 3 months in their new home.

Community Resources

Community Pet Classes

Get your new pet started on the right paw with our new community pet classes. Each session covers the basics of pet care, helping you build a better bond with your four-legged friends.

Pet Costume Contest

Howl-o-ween

It’s that time of year. The leaves are falling. The spices are mulling. The ghosts are haunting. And your pets, dressed in their Halloween best, will soon be slaying (their looks of course)!

Now through November 3rd, enter your pet in their howl-o-ween best in the Pet Costume Contest!

Community Resources

Lost & Found Pets

Lost a pet? We can help.
Found a pet? We can help too!

Learn what to do if you’ve found a pet or browse lost pets in Humane Colorado care.