10+ years
Odie
Hi, I am Odie! I am a sweet, gentle and loving older pup looking for a home. I like to cuddle, take naps on the couch and walk around the yard. I am u…
Larimer Humane Society • Fort Collins, CO
Senior dogs in Colorado
Senior dogs for adoption in Colorado
Meet 93 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 93 below.
Last updated September 24, 2026 at 2:23 PM EDT. 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. Always confirm availability and adoption requirements directly with the shelter or rescue.
28 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
93 senior dogs available in Colorado.
Senior confirmed
Biggie
Meet Biggie, a very friendly, sweet, and loving pup who is always happy to make new friends and share some affection! He has a history of living with …
Denver Animal Shelter • Denver, CO
Senior confirmed
Prince
Meet Prince! This fella is ready to find his new family! Prince is house-broken and generally walks well on leash (unless he really has to potty). He …
Aurora Animal Care • Aurora, CO
Senior confirmed
Mouse
This wonderful pup is happy go lucky and oh so fun! The volunteers and staff have nothing but wonderful things to say about him. He does need a home w…
Denver Animal Shelter • Denver, CO
10+ years
10+ years
Woodrow/Caesar
Golden Growls Senior Rescue • Loveland, CO
Senior confirmed
Senior confirmed
Cruz
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
Senior confirmed
Lola
Lola is a 7-year-old, spayed female, pitbull mix weighing about 50lbs. Lola was in a loving home, but they struggled to deal with her dog reactivity. …
Summit County Animal Control • Frisco, CO
10+ years
Liv
Meet Liv! Liv is a 10-year-old Australian Cattle Dog/Blue Heeler — but don't let that number fool you for a second. She plays just as hard as Marlee, …
Evergreen Animal Protective League • Evergreen, CO
Senior confirmed
Leela
Meet Leela! She is 8 years old and 66 pounds. Leela is a lovely lady that is ready for her forever home! She likes to greet you by grabbing one of her…
Until They're Home • Fort Collins, CO
10+ years
Tyche
Meet Tyche, a delightful senior dog who is ready to steal your heart! At 10 years old, she brings a wealth of love and loyalty, and she’s looking for …
Until They're Home • Fort Collins, CO
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
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
Updated recently
Bentley
Meet Bentley! Bentley is a sweet senior pup who loves to cuddle and relax in the sun. He has never met a person he does not love, and while 11 years o…
Until They're Home • Fort Collins, CO
Senior confirmed
Averi
My name is Averi and I am an independent girl. I like to spend my days being lazy on the couch in and out of naps or sun bathe outside protecting my h…
Until They're Home • Fort Collins, CO
10+ years
Atlas
Breed: Husky Age: 10 years oldSex: Female Weight: 60lbsColor: Black and White Spayed/Neutered: YesABOUT MEAtlas enjoys leisurely walks with his favori…
Summit County Animal Control • Frisco, CO
Senior confirmed
Penny
Meet Penny! She is a ball of sunshine and happiness and loves to meet everyone she sees. She is an older gal, but it doesn't slow her down for a good …
Aurora Animal Care • Aurora, CO
10+ years
Koda
Breed: German Shepard Mix Age: 10 yearsSex: Male Weight: 50 lbsColor: Black & Tan Spayed/Neutered: YesABOUT MEMeet Koda, a loving and quiet companion …
Summit County Animal Control • Frisco, CO
10+ years
Rosella
Rosella is a 13-year-old, spayed female, pitbull mix weighing about 50lbs. When she first arrived, we thought she was terminally ill…but she has prove…
Summit County Animal Control • Frisco, CO
10+ years
Fenway
Fenway is a shy, timid male who’s looking for a calm, comforting home where he can truly relax and feel safe. He approaches new situations quietly and…
Adams County Animal Shelter • Brighton, CO
10+ years
Kuzco
Meet Kuzco! This sweet, senior beagle is looking for his forever home! He is a nervous, gentle soul who loves snuggles once he gets to know you!
Until They're Home • Fort Collins, CO
Senior confirmed
Kumara
This dog is a courtesy listing and not one of our dogs. Please contact the email listed in this post. For more information about Kumara, please contac…
Animal Rescue of the Rockies • Aurora, CO
Senior confirmed
Forest
Meet Forest! She is a sweet and playful girl ready for her new home! She is 7 years old and about 50 pounds. Forest loves toys and going for walks. Sh…
Until They're Home • Fort Collins, 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
Senior confirmed
David Puddy
Meet David Puddy! He is 8 years old and just under 80 pounds. This senior boxer boy is looking for a new home to spend his golden years. He is good wi…
Until They're Home • Fort Collins, 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
Rocky heeler
Rocky is very calm, sweet and seems to always be in a good mood, happy to join any activity or just be around. He has unique fuzzy heeler coloring, mo…
San Nicola Dog Rescue • westminster, CO
Senior confirmed
Estrella
Meet Estrella and Chiva, a charming mother-daughter duo with hearts full of love. These sweet and shy souls have bonded deeply, offering each other co…
Adams County Animal Shelter • Brighton, CO
Senior confirmed
Lokee
Lokee is a sweet, outdoorsy boy who loves to explore, “talk,” and hang with his people. He’s great with kids and other dogs, and he’s completely bonde…
Adams County Animal Shelter • Brighton, 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.
- National Mill Dog Rescue (opens in a new tab) — Peyton, Colorado · See National Mill Dog Rescue’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
- Larimer Humane Society (opens in a new tab) — Fort Collins, Colorado · See Larimer Humane Society’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
- 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
- Breeder Release Adoption Service (opens in a new tab) — Bon Carbo, Colorado · See Breeder Release Adoption Service’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
- Denver Animal Shelter (opens in a new tab) — Denver, Colorado · See Denver Animal Shelter’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
- Golden Growls Senior Rescue (opens in a new tab) — Loveland, Colorado · See Golden Growls Senior Rescue’s senior dogs on Lily's Second Chance
- Mountain Pet Rescue (opens in a new tab) — Tabernash, Colorado · See Mountain Pet Rescue’s senior dogs on Lily's Second Chance
- San Nicola Dog Rescue (opens in a new tab) — westminster, Colorado · See San Nicola Dog Rescue’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
- The Good Life Dog Rescue - Denver — Highlands Ranch, Colorado · See The Good Life Dog Rescue - Denver’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
- Dalmatian Rescue of Colorado (opens in a new tab) — Fort Collins, Colorado · See Dalmatian Rescue of Colorado ’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
- HOPE FOR ANIMALS (formerly CCCARL; Clear Creek County Animal Rescue League) (opens in a new tab) — Georgetown, Colorado · See HOPE FOR ANIMALS (formerly CCCARL; Clear Creek County Animal Rescue 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
- Humane Society of the South Platte Valley (opens in a new tab) — Littleton, Colorado · See Humane Society of the South Platte Valley’s senior dogs on Lily's Second Chance
- Lily's Second Chance · See Lily's Second Chance’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.
Know a senior dog in Colorado who needs a home?
Shelters and rescues can list adoptable senior dogs for free.