Lily’s Second Chance

Senior dogs in Colorado

Senior dogs for adoption in Colorado

Meet 166 adoptable senior dogs (age 7+) in Colorado. Each one is from a shelter or rescue and ready to give an older dog's quiet, grateful love. Showing 1–30 of 166 below.

Last updated November 9, 2026 at 1:47 AM EST. Listings refresh throughout the day. Always confirm a dog’s availability with the shelter or rescue before making plans.

Senior dogs — age 7 and up — wait far longer for homes than puppies, even though they're usually already house-trained, past the chewing stage, and happy to nap at your feet. Adopting an older dog in Colorado means you typically know their size, temperament, and energy level from day one: fewer surprises, and a grateful companion who settles in fast. Right now the senior dogs listed in Colorado include Pit Bull Terrier, Chihuahua, and Australian Cattle Dog, spread across 19 cities and 30 shelters and rescues. Always confirm availability and adoption requirements directly with the shelter or rescue.

30 shelters and rescues in Colorado currently list senior dogs on Lily's Second Chance.

How adoption works in Colorado

In Colorado, rescue groups post most of the listings, and the majority come from around Denver, Pueblo and Fort Collins. A rescue adoption usually begins with an application and a conversation, and the dog is often living in a foster home. Municipal shelters and humane societies list here as well, generally with walk-in hours.

Open the profile of a dog you are curious about and contact the organization that has it. Plan on an application or a conversation, then a meet and greet, and an adoption fee decided by that organization, which often covers spay or neuter and vaccinations. With listings centered on a few cities, many groups help arrange transport within the state. Check the organization on the dog's profile for that dog's history, requirements and availability.

Available senior dogs in Colorado

166 senior dogs available in Colorado.

Senior confirmed
Photo of Blue, adoptable senior Husky / Mixed Breed (Large) in Glenwood Springs, Colorado

Blue

Husky / Mixed Breed (Large) • Male • 8 years

: Free Spirit · Calm Dog Friends Preferred · Cats - No thank you · Kids - Yes please · Grooming Required · Dogs - Yes Please · Housetrained

Colorado Animal Rescue • Glenwood Springs, CO

View profileView Adoption Page ↗ (opens in a new tab)
10+ years
Photo of Rocky, adoptable senior Chinese Shar-Pei in Brighton, Colorado

Rocky

Chinese Shar-Pei • Male • Large • 10 years

Meet Rocky! Rocky is a sweet, gentle senior who just needs a little time to adjust and build trust. He loves being outdoors, walks beautifully on leas…

Adams County Animal Shelter • Brighton, CO

View profileContact shelter
10+ years
Photo of Annabelle, adoptable senior Cardigan Welsh Corgi in Brighton, Colorado

Annabelle

Cardigan Welsh Corgi • Female • Medium • 12 years

Meet Annabelle, the adorable senior corgi with a young-at-heart sparkle! This sweet, social gal still loves a good game of chase and can’t resist a so…

Adams County Animal Shelter • Brighton, CO

View profileContact shelter
Senior confirmed
Photo of Trigger, adoptable senior Siberian Husky in Brighton, Colorado

Trigger

Siberian Husky • Male • Large • 7 years

Meet this handsome, house-trained gentleman who is fully potty-trained and ready to find his perfect match! He is eager to bond with his new family th…

Adams County Animal Shelter • Brighton, CO

View profileContact shelter
Senior confirmed
Photo of Cruz, adoptable senior American Pit Bull Terrier in Colorado Springs, Colorado

Cruz

American Pit Bull Terrier • Male • 9 years

Hi, I’m Cruz, your senior heartthrob with kangaroo legs and a lover‑boy soul 💛🐾. I’m 110% certified in snuggles, charm, and dramatic hops, especiall…

White Rose Sanctuary • Colorado Springs, CO

View profileVisit Rescue ↗ (opens in a new tab)
Senior confirmed
Photo of Fink, adoptable senior American Bulldog/Bulldog in Highlands Ranch, Colorado

Fink

American Bulldog/Bulldog • Male • 8 years

The Good Life Dog Rescue - Denver • Highlands Ranch, CO

View profileContact shelter
Senior confirmed
Photo of Winston, adoptable senior Bulldog in Colorado Springs, Colorado

Winston

Bulldog • Male • 7 years

Winston is 7 years young and 73 lbs of pure, lovable noodle. This boy is SO ridiculously easygoing. A bouncy puppy can bounce around him, and even whe…

White Rose Sanctuary • Colorado Springs, CO

View profileVisit Rescue ↗ (opens in a new tab)
Senior confirmed
Photo of Stella, adoptable senior Pit Bull Terrier in Aurora, Colorado

Stella

Pit Bull Terrier • Female • Medium • 8 years

Meet Stella! This wonderful girl already knows sit and down, seems to be housebroken, and likes to play fetch. She can be a bit shy at first when meet…

Aurora Animal Care • Aurora, CO

View profileContact shelter
10+ years
Photo of Sarge, adoptable senior Pit Bull Terrier in Fort Collins, Colorado

Sarge

Pit Bull Terrier • Male • Large • 11 years

Hi there, I'm Sarge. I have the most beautiful, soulful puppydog eyes and a personality to match. I love attention and going out for walks, or to lay …

Larimer Humane Society • Fort Collins, CO

View profileContact shelter

Senior dogs in Colorado by breed

Pit Bull Terrier24Chihuahua12Australian Cattle Dog10German Shepherd9Husky7Labrador Retriever7Shih Tzu6Boxer5Mixed Breed5American Bulldog4Border Collie4Siberian Husky4

Senior dogs in Colorado by city

Fort Collins31Colorado Springs27Denver23Boulder18Aurora16Brighton16Pueblo7Evergreen6Frisco5Glenwood Springs4Loveland4Littleton3

Shelters & rescues with senior dogs in Colorado

These organizations currently have at least one adoptable senior dog listed on Lily's Second Chance.

Low-cost spay, neuter and vet care in Colorado

Programs that help Colorado adopters keep a dog healthy on a budget. Each page was checked on 2026-09-10; confirm current hours and eligibility with the organization.

Senior dogs in other states

California1318Texas951Florida797Arizona318Georgia298Illinois216North Carolina214Maryland213New York195Nevada161Utah135Missouri130
All statesBrowse by breed

Adopting a senior dog in Colorado — FAQ

What counts as a senior dog?

Most shelters and vets consider a dog "senior" around age 7, though large breeds often age sooner and small breeds a little later. Every dog listed here is 7 years or older.

How do I adopt a senior dog in Colorado?

Open any dog's profile to see which shelter or rescue is caring for them, then use the adoption link or contact details to apply directly with that organization. Lily's Second Chance gathers senior dogs in one place so they're easier to find — the adoption itself happens through the local group.

How much does it cost to adopt a senior dog in Colorado?

Adoption fees vary by organization, but senior dogs are frequently discounted or sponsored because they wait the longest. Many rescues also begin any needed medical care before adoption. The dog's profile or the shelter can confirm the current fee.

Are senior dogs harder to care for?

Usually not. Older dogs are typically calmer and already trained, which makes the first weeks far easier than with a puppy. Some have age-related needs like a special diet or joint support, and the listing or shelter will tell you what to expect.

Can I adopt a senior dog from another city in Colorado?

Yes. Most shelters and rescues in Colorado welcome adopters from anywhere in the state, and some can arrange transport within Colorado for the right match. Open a dog's profile to see the organization's contact details and ask them directly how their process works.

What should I expect in the first weeks after adopting a senior dog in Colorado?

Senior dogs usually settle in faster than puppies because they're already past the most demanding stage. Expect a brief adjustment period — they may be shy at first, then relax into their personality. A consistent routine, a comfortable spot to rest, and patience are usually all it takes.

Can I foster a senior dog in Colorado instead of adopting?

Many shelters and rescues in Colorado offer foster programs — sometimes with a foster-to-adopt path so you can try the match before committing. Fostering is especially valuable for senior dogs because it gets them out of a kennel and into a calm home while they wait for their forever family. Ask the organization on any dog's profile whether fostering is available.

Are senior dogs good with children or other pets in a Colorado home?

Many senior dogs are calm, gentle, and well-suited to family life — but it depends on the individual dog more than anything else. The shelter or rescue caring for each dog can tell you their specific history with children, cats, and other dogs before you apply. Many organizations offer meet-and-greets to make sure the match is right for everyone.

Guides to help you decide

Getting started

Why Adopt a Senior Dog? 7 Reasons Older Dogs Make Wonderful Companions

Senior dogs are often calm, house-trained, and overlooked at shelters. Here are seven honest reasons an older dog may be the best companion you ever bring home.

6 min readUnderstanding age

How Old Is a "Senior" Dog? Senior Age by Breed and Size

A dog is not "old" at the same age across the board — size and breed change everything. Here is how to tell when a dog becomes a senior, and what it means for care.

5 min readCare & health

Caring for a Senior Dog: Health, Diet, and Everyday Comfort

How to keep an older dog healthy and comfortable — vet care, senior-appropriate diet, joint and dental health, exercise, and simple home adjustments that make a big difference.

8 min read

Know a senior dog in Colorado who needs a home?

Shelters and rescues can list adoptable senior dogs for free.

Submit a senior dogBrowse resources