Senior confirmed
Ygritte
Ygritte has had quite the life before coming to the shelter and is looking for a home she can relax and build trust with her people! Ygritte is a nerv…
Aurora Animal Care • Aurora, CO
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 31–60 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 32 shelters and rescues. Always confirm availability and adoption requirements directly with the shelter or rescue.
32 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
Scout #9
Animal Rescue of the Rockies believes every pet should find a wonderful and caring home. To ensure Scout #9 finds the best possible home, we ask you f…
Animal Rescue of the Rockies • Aurora, CO
Senior confirmed
Reggie
Meet Reggie Reggie is a distinguished older gentleman looking for the perfect place to enjoy his golden years! Estimated to be around 8–9 years old, R…
Evergreen Animal Protective League • Evergreen, CO
Senior confirmed
Brodie
Brodie is a gentle soul with a tender heart. She thrives in a quiet, predictable environment and is hoping to find a home that can match her calming e…
Adams County Animal Shelter • Brighton, CO
Senior confirmed
Dingo
This gentle boy brings a friendly spirit and an independent streak wherever he goes. He walks wonderfully on leash and already knows a few basics—plus…
Adams County Animal Shelter • Brighton, CO
10+ years
Smokey
Smokey is a sweet, sensitive guy with a big heart. He’s affectionate, loves to cuddle, and is happiest when he’s close to his people. He’s also houset…
Dumb Friends League • Denver, CO
Senior confirmed
Sora
Hello, I'm Sora. I may be on the shy and sensitive side, but I'm also very, very brave. I love exploring new places with my nose, sniffing out interes…
Humane Society of the Pikes Peak Region — Pueblo • Pueblo, CO
10+ years
Deja Blue
Hi, I'm Deja Blue! I am a very sweet lady who is on the hunt for a new home. I'm a loving, loyal, and lovable pup. I'll be waiting patiently to meet m…
Larimer Humane Society • Fort Collins, CO
10+ years
Nas
Nas is a big, friendly guy who likes hot dogs and cheese and loves loves loves tennis balls; he'll play fetch until he's too tired to do it anymore - …
Dumb Friends League • Denver, CO
10+ years
Senior confirmed
Senior confirmed
Hunter #3
Animal Rescue of the Rockies believes every pet should find a wonderful and caring home. To ensure Hunter finds the best possible home, we ask you fil…
Animal Rescue of the Rockies • Aurora, CO
Senior confirmed
Lydia
Lydia is a gentle, sweet girl! She can be a little nervous at first but warms up quickly. She has also lived with another dog in her previous home!
Denver Animal Shelter • Denver, CO
Senior confirmed
Terri
Hi, we are Terri and Austin! We are a cute bonded pair of pups in need of a new home. We like to cuddle and play with squeaky toys. We can be a little…
Larimer Humane Society • Fort Collins, CO
Senior confirmed
Senior confirmed
Kaya
Kaya is a sweet old babe is looking for walking partner who can give calm affection. She can be a bit timid but she warms up quickly! Don't let her ag…
Denver Animal Shelter • Denver, CO
Senior confirmed
Banjo
Hi, I'm Banjo! I am a sweet lady looking for a home. I'm an easy-going pup that likes to relax. I also like to go on walks. I would love to meet you!
Larimer Humane Society • Fort Collins, CO
Senior confirmed
Senior confirmed
Pigosa
Hi, I'm Pigosa! I am a sweet and goofy pup looking for my home. I like to play with rope toys. I can't wait to meet my new family!
Larimer Humane Society • Fort Collins, CO
Senior confirmed
Senior confirmed
Maude
Maude is a super affectionate girl who loves being close to her people and has done well with other dogs in the past. She’s also got a serious case of…
Dumb Friends League • Denver, CO
10+ years
Baxter
Hi, I am Baxter. I am a super sweet and loving older gentleman looking for a home. I like to cuddle, play and make friends. I have a good history with…
Larimer Humane Society • Fort Collins, CO
Senior confirmed
Butterfinger
Butterfinger is an active, adventurous pup who’s always ready to explore and loves getting pets and attention from his people! When he gets excited, h…
Denver Animal Shelter • Denver, CO
Senior confirmed
Flower
Hi, I'm Flower! I am a sweet lady looking for a home to call my own. I love to explore outside and get pets. I need to find a home where I can be an o…
Larimer Humane Society • Fort Collins, CO
Senior confirmed
Kitsune Courtsey Listing
All people inquiring about pets listed as Courtesy Listings on the EAPL website and/or EAPL posting adoption boards should contact the current pet own…
Evergreen Animal Protective League • Evergreen, CO
Senior confirmed
Fenway #1
Animal Rescue of the Rockies believes every pet should find a wonderful and caring home. To ensure Fenway finds the best possible home, we ask you fil…
Animal Rescue of the Rockies • Aurora, CO
10+ years
Ike & Francy
Ike & Francy are a sweet bonded senior pair looking for a home where they can spend their golden years. They would do best with someone who is home mo…
HOPE FOR ANIMALS (formerly CCCARL; Clear Creek County Animal Rescue League) • Georgetown, CO
10+ years
Panda
PRANCING PANDA This adorable little senior furball only wants two things: 1) to lay by your feet, and 2) to PRANCE across a grassy field! When Panda a…
Evergreen Animal Protective League • Evergreen, CO
10+ years
Rocky
All people inquiring about pets listed as Courtesy Listings on the EAPL website and/or EAPL posting adoption boards should contact the current pet own…
Evergreen Animal Protective League • Evergreen, CO
Senior confirmed
Spirit
No one seems to have told Spirit that she's a little to big to be a lapdog! She's prefers affection and snuggles over treats or toys. Spirit is very e…
Dumb Friends League • Denver, CO
Senior dogs in Colorado by breed
Senior dogs in Colorado by city
Shelters & rescues with senior dogs in Colorado
These organizations currently have at least one adoptable senior dog listed on Lily's Second Chance.
- Larimer Humane Society (opens in a new tab) — Fort Collins, Colorado · See Larimer Humane Society’s senior dogs on Lily's Second Chance
- National Mill Dog Rescue (opens in a new tab) — Peyton, Colorado · See National Mill Dog Rescue’s senior dogs on Lily's Second Chance
- Denver Animal Shelter (opens in a new tab) — Denver, Colorado · See Denver Animal Shelter’s senior dogs on Lily's Second Chance
- Until They're Home (opens in a new tab) — Fort Collins, Colorado · See Until They're Home’s senior dogs on Lily's Second Chance
- Adams County Animal Shelter (opens in a new tab) — Brighton, Colorado · See Adams County Animal Shelter’s senior dogs on Lily's Second Chance
- Dumb Friends League (opens in a new tab) — Denver, Colorado · See Dumb Friends League’s senior dogs on Lily's Second Chance
- Riverdale Animal Shelter (opens in a new tab) — Brighton, Colorado · See Riverdale Animal Shelter’s senior dogs on Lily's Second Chance
- Humane Society of the Pikes Peak Region — Pueblo (opens in a new tab) — Pueblo, Colorado · See Humane Society of the Pikes Peak Region — Pueblo’s senior dogs on Lily's Second Chance
- Animal Rescue of the Rockies (opens in a new tab) — Aurora, Colorado · See Animal Rescue of the Rockies’s senior dogs on Lily's Second Chance
- Evergreen Animal Protective League (opens in a new tab) — Evergreen, Colorado · See Evergreen Animal Protective League’s senior dogs on Lily's Second Chance
- Humane Society of the Pikes Peak - Colorado Springs — Colorado Springs, Colorado · See Humane Society of the Pikes Peak - Colorado Springs’s senior dogs on Lily's Second Chance
- Ace of Hearts Dog Rescue - CO (opens in a new tab) — Boulder, Colorado · See Ace of Hearts Dog Rescue - CO’s senior dogs on Lily's Second Chance
- Aurora Animal Care (opens in a new tab) — Aurora, Colorado · See Aurora Animal Care’s senior dogs on Lily's Second Chance
- Aurora Animal Shelter (opens in a new tab) — Aurora, Colorado · See Aurora Animal Shelter’s senior dogs on Lily's Second Chance
- Colorado Animal Rescue (opens in a new tab) — Glenwood Springs, Colorado · See Colorado Animal Rescue’s senior dogs on Lily's Second Chance
- The Good Life Dog Rescue - Denver — Highlands Ranch, Colorado · See The Good Life Dog Rescue - Denver’s senior dogs on Lily's Second Chance
- Summit County Animal Control and Shelter (opens in a new tab) — Frisco, Colorado · See Summit County Animal Control and Shelter’s senior dogs on Lily's Second Chance
- Colorado Puppy Rescue (opens in a new tab) — Parker, Colorado · See Colorado Puppy Rescue’s senior dogs on Lily's Second Chance
- Golden Growls Senior Rescue (opens in a new tab) — Loveland, Colorado · See Golden Growls Senior Rescue’s senior dogs on Lily's Second Chance
- NOCO Humane Larimer Campus (opens in a new tab) — Loveland, Colorado · See NOCO Humane Larimer Campus’s senior dogs on Lily's Second Chance
- Old Soul Canine Rescue (opens in a new tab) — Nederland, Colorado · See Old Soul Canine Rescue’s senior dogs on Lily's Second Chance
- Summit County Animal Control — Frisco, Colorado · See Summit County Animal Control’s senior dogs on Lily's Second Chance
- White Rose Sanctuary (opens in a new tab) — Colorado Springs, Colorado · See White Rose Sanctuary’s senior dogs on Lily's Second Chance
- Animal Aid Brigade - Colorado — Denver, Colorado · See Animal Aid Brigade - Colorado’s senior dogs 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.
- Spay / neuterHumane Colorado Spay/Neuter Clinic (opens in a new tab) — Affordable spay and neuter surgery for owned cats and dogs at the Denver veterinary hospital at CSU Spur.
- Low-cost vet careHumane Colorado Community Veterinary Services (opens in a new tab) — Denver hospital offering urgent care, surgery, dental care, wellness clinics and affordable vaccinations.
- Spay / neuterHumane Society of the Pikes Peak Region Colorado Springs Spay and Neuter Services (opens in a new tab) — Low cost spay and neuter packages for cats and dogs at the Colorado Springs clinic, booked online.
- Spay / neuterHumane Society of Boulder Valley Spay and Neuter Information (opens in a new tab) — Spay and neuter surgery for dogs, cats and small animals with discounts for income qualified local families.
- Low-cost vet careHumane Society of the Pikes Peak Region Veterinary Services (opens in a new tab) — Wellness exams, vaccinations and a mobile clinic from Colorado Springs and Pueblo shelter clinics.
Senior dogs in other states
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 ageHow 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 & healthCaring 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 readKnow a senior dog in Colorado who needs a home?
Shelters and rescues can list adoptable senior dogs for free.