Senior confirmed
ZACK
Zack is a happy, busy, energetic guy and a great walker. He's quite friendly and social and gets very excited when he meets new people. He has to shak…
Dumb Friends League • Denver, CO
Senior dogs in Colorado
Senior dogs for adoption in Colorado
Meet 95 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 95 below.
Last updated July 12, 2026 at 9:30 AM EDT. Listings refresh automatically, usually every 12 hours.
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.
Available senior dogs in Colorado
Senior confirmed
SLINKY
Hi, I’m Slinky. I’m a beautiful, friendly, gentle guy with a good record interacting with other dogs. I can become introverted when the other dogs in …
Larimer Humane Society • Fort Collins, CO
Senior confirmed
AMIRA
Amira is a very affectionate girl who loves spending time with her people and forming close bonds with those she trusts. She can be a little nervous w…
Dumb Friends League • Denver, CO
10+ years
MOONSHINE
Meet Moonshine. This affectionate girl loves to head to the play yard and splash around in the baby pool. She's definitely a water baby! She's no shad…
Dumb Friends League • Denver, CO
Senior confirmed
ROWDY
Rowdy is a senior dog who loves being close to her people, sunbathing in yards and getting belly scratches. She's lived with other dogs successfully b…
Humane Society of the Pikes Peak Region — Pueblo • Pueblo, CO
10+ years
GOMDULLY
This little pup is a sweet older fluff ball that enjoys pets and being around people. This dog has lived with well other dogs. Please ask about the 2 …
Denver Animal Shelter • Denver, CO
Senior confirmed
CANYON
Canyon is a handsome Husky mix who is looking forward to his retirement years. He'd love to settle into a mellow home where he can take life at his ow…
Humane Society of the Pikes Peak Region — Pueblo • Pueblo, CO
Senior confirmed
LILO
LILO is a senior female Pit Bull Terrier, medium size, at the Humane Society of the Pikes Peak Region — Pueblo in Pueblo, CO. Senior dogs make wonderf…
Humane Society of the Pikes Peak Region — Pueblo • Pueblo, CO
Senior confirmed
BILL NYE
Hi there! My name is Bill Nye and I am a superstar here at the shelter! I do love to talk and enjoy a good snuggle session. I have lived with dogs, ca…
Denver Animal Shelter • Denver, CO
Senior confirmed
Carly
Carly is an approximately 8-year-old 18.8-pound sweetheart looking for a calm, loving home to call her own. We believe she may have come from a quiet …
Evergreen Animal Protective League • Evergreen, CO
Senior confirmed
Athanos
Meet Athanos! Athanos is a friendly and goofy dog who tends to be a bit stoic at first but warms up nicely with time. He enjoys playing with tennis ba…
Until They're Home • Fort Collins, CO
10+ years
Lane
Lane is an approximately 4 yr old, 50 lb. boy who LOVES to play fetch and go for long sniffy walking adventures. While Lane was raised with another do…
Mountain Pet Rescue • Tabernash, CO
10+ years
Hollywood #2
Animal Rescue of the Rockies believes every pet should find a wonderful and caring home. To ensure Hollywood #2 finds the best possible home, we ask y…
Animal Rescue of the Rockies • Aurora, CO
Senior confirmed
LILO
Meet Lilo! She is an 8-year-old, spayed female, Australian Cattle dog weighing around 58 lbs. Lilo was in a loving home, but her person got sick. She …
Summit County Animal Control • Frisco, CO
Senior confirmed
Chevy
Meet Chevy Status: Available Sex: Spayed Female – Gastropexied Color: Merle Ears: Natural Age: 6 yrs Weight: 108 lbs Great Dane Experience Required Ad…
Rocky Mountain Great Dane Rescue • Lakewood, CO
Senior confirmed
Nori
Nori is 3-4 yrs old and 40 lbs of adorable, spunky, smart, very treat motivated, lab mix. She loves women and has learned to trust confident, patient,…
Mountain Pet Rescue • Tabernash, CO
Senior confirmed
BUDDY
Hi, I am Buddy. I am a super sweet, loving and outgoing older pup looking for a home. I like to cuddle, sniff around the yard and make friends. I have…
Larimer Humane Society • Fort Collins, CO
Senior confirmed
Zowey
Meet Zowey! This sweet girl is looking for a new home! She does well with kids and other dogs. Zowey has skin allergies but is otherwise a healthy gir…
Until They're Home • Fort Collins, CO
10+ years
SARGE
Hi, I am Sarge. I am a super sweet and loving older gentleman looking for a home, I like to cuddle, play with toys and give kisses. I have a good hist…
Larimer Humane Society • Fort Collins, CO
Senior confirmed
LOTUS
Meet Lotus, a sweet girl who loves pets and per volunteers also loves treats and is a great walker.
Denver Animal Shelter • Denver, CO
10+ years
Max
Meet Max! This sweet senior GSD is looking for a new home! Max is 10 years old and 70 pounds. He has had a hard past but he is sweet as can be and rea…
Until They're Home • Fort Collins, CO
10+ years
CHOPPER
Hi, I'm Chopper! I am a sweet and handsome boy who is looking for my new family. I am still pretty active for an older fellow, but I also like to cudd…
Larimer Humane Society • Fort Collins, CO
Senior confirmed
BUCKY
BUCKY is a male senior Siberian Husky, medium-sized, at Summit County Animal Control in Frisco, CO. Senior dogs make wonderful companions.
Summit County Animal Control • Frisco, CO
Senior confirmed
RUBY
It's unanimous: Ruby is sweet and gentle. She's a happy lady of a certain age who enjoys walks, but enjoys affection even more. We have limited backgr…
Dumb Friends League • Denver, CO
10+ years
MISSY
Missy is a gentle soul looking for a quiet home where she can feel safe, loved, and comfortable. New situations can make her nervous, so she appreciat…
Aurora Animal Care • Aurora, 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
GUMBO
Gumbo may be aged, but he still acts like a puppy! He has plenty of energy, loves to be involved in the fun, loves adventures and may even like other …
Denver Animal Shelter • Denver, CO
Senior confirmed
Cuddles
Cuddles is a very sweet girl who came to CCFR because her elder owner could no longer care for her. At 10 years old she is a mature girl, but that doe…
Colorado Corgis and Friends • Denver, CO
10+ years
Toast
Meet Toast! Toast is a goofy, high energy boy even at 10 years old. His favorite activities are playing frisbee, hiking, and walks. He does great on a…
Until They're Home • Fort Collins, CO
Senior confirmed
Buddy
Meet Buddy! 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 with oth…
Until They're Home • Fort Collins, 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.
- Until They're Home — Fort Collins, Colorado · See Until They're Home’s senior dogs on Lily's Second Chance
- Denver Animal Shelter — Denver, Colorado · See Denver Animal Shelter’s senior dogs on Lily's Second Chance
- Larimer Humane Society — Fort Collins, Colorado · See Larimer Humane Society’s senior dogs on Lily's Second Chance
- Humane Society of the Pikes Peak Region — Pueblo — Pueblo, Colorado · See Humane Society of the Pikes Peak Region — Pueblo’s senior dogs on Lily's Second Chance
- Evergreen Animal Protective League — Evergreen, Colorado · See Evergreen Animal Protective League’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
- Adams County Animal Shelter — Brighton, Colorado · See Adams County Animal Shelter’s senior dogs on Lily's Second Chance
- Aurora Animal Care — Aurora, Colorado · See Aurora Animal Care’s senior dogs on Lily's Second Chance
- Dumb Friends League — Denver, Colorado · See Dumb Friends League’s senior dogs on Lily's Second Chance
- Mountain Pet Rescue — Tabernash, Colorado · See Mountain Pet Rescue’s senior dogs on Lily's Second Chance
- Animal Rescue of the Rockies — Aurora, Colorado · See Animal Rescue of the Rockies’s senior dogs on Lily's Second Chance
- HOPE FOR ANIMALS (formerly CCCARL; Clear Creek County Animal Rescue League) — Georgetown, Colorado · See HOPE FOR ANIMALS (formerly CCCARL; Clear Creek County Animal Rescue League)’s senior dogs on Lily's Second Chance
- Old Soul Canine Rescue — Nederland, Colorado · See Old Soul Canine Rescue’s senior dogs on Lily's Second Chance
- Breeder Release Adoption Service — Bon Carbo, Colorado · See Breeder Release Adoption Service’s senior dogs on Lily's Second Chance
- Golden Growls Senior Rescue — Loveland, Colorado · See Golden Growls Senior Rescue’s senior dogs on Lily's Second Chance
- San Nicola Dog Rescue — westminster, Colorado · See San Nicola Dog Rescue’s senior dogs on Lily's Second Chance
- The Misfits Dog Rescue — Colorado Springs, Colorado · See The Misfits Dog Rescue’s senior dogs on Lily's Second Chance
- White Rose Sanctuary — Colorado Springs, Colorado · See White Rose Sanctuary’s senior dogs on Lily's Second Chance
- Colorado Corgis and Friends — Denver , Colorado · See Colorado Corgis and Friends’s senior dogs on Lily's Second Chance
- Rocky Mountain Collie and Sheltie Rescue, Inc. — Pueblo, Colorado · See Rocky Mountain Collie and Sheltie Rescue, Inc.’s senior dogs on Lily's Second Chance
- Rocky Mountain Great Dane Rescue — Lakewood, Colorado · See Rocky Mountain Great Dane Rescue’s senior dogs on Lily's Second Chance
- Saving Dobermankind Animal Rescue — Fountain , Colorado · See Saving Dobermankind Animal Rescue’s senior dogs on Lily's Second Chance
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.