Senior confirmed
CAMERON
CAMERON is a large male Pit Bull Terrier / Labrador Retriever, senior, at Denver Animal Shelter in Denver, CO. Senior dogs make wonderful companions.
Denver Animal Shelter • 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 1–30 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
10+ years
10+ years
Fido
Good with Cats · Good with Dogs · Good with Kids · Housetrained
Old Soul Canine Rescue • Nederland, CO
10+ years
Senior confirmed
JAX
Meet Jax! He’s an energetic, playful, and affectionate golden who loves toys—especially tennis balls—and is great at fetch, even dropping the ball for…
Adams County Animal Shelter • Brighton, CO
Senior confirmed
NOVA
Meet Nova, she can be shy at first and may take some time to warm up. A home with older kids who can understand her need for space would be ideal. Onc…
Denver Animal Shelter • Denver, CO
Senior confirmed
VECTOR
This darling little gentleman is Vector! He is mellow, loves to go on walks and loves attention!
Denver Animal Shelter • Denver, CO
Updated recently
INDIGO
Hi, my name is Indigo! I'm a sweet little lady looking for a home. New people and situations make me nervous, so I need to find a quiet home without c…
Larimer Humane Society • Fort Collins, CO
Senior confirmed
Brody
Meet Brody! Brody is a 7-year-old Beagle/Chihuahua mix weighing in at just 19 pounds—the perfect size for snuggling! He can be a little shy when meeti…
Evergreen Animal Protective League • Evergreen, CO
Senior confirmed
FENDI
Fendi is a small, sweet girl who just needs a little time to feel safe. She can be nervous when first meeting new people, but once she warms up, her g…
Denver Animal Shelter • Denver, CO
10+ years
KUZCO
Meet this sweet senior who’s looking for a peaceful place to call home. He walks beautifully on leash and would love light, easy outings with his fami…
Adams County Animal Shelter • Brighton, CO
Senior confirmed
SHERIFF JESSIE
SHERIFF JESSIE is a senior female Border Collie, medium in size, located in Pueblo, CO at the Humane Society of the Pikes Peak Region — Pueblo. Senior…
Humane Society of the Pikes Peak Region — Pueblo • Pueblo, CO
10+ years
HARVEY
Harvey is a happy-go-lucky chocolate Lab who loves people and is always ready for his next adventure. His favorite hobby is chasing cats, so he'll do …
Humane Society of the Pikes Peak Region — Pueblo • Pueblo, CO
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
Clifford
Howdy, I’m Clifford, your oversized senior gentleman who looks like a whole lot of dog but is really just a soft, slow‑moving cinnamon roll 🐾💛. I mi…
White Rose Sanctuary • Colorado Springs, CO
10+ years
Krisitie
Krisitie is a 16-year-old female German Shepherd Dog at Golden Growls Senior Rescue in Loveland, CO. Senior dogs make wonderful companions.
Golden Growls Senior Rescue • Loveland, CO
10+ years
Woodrow/Caesar
Woodrow/Caesar is a 21-year-old male Cavalier King Charles Spaniel with Golden Growls Senior Rescue in Loveland, CO. Senior dogs make wonderful compan…
Golden Growls Senior Rescue • Loveland, CO
Senior confirmed
BUDDY
Don't let his age fool you - Buddy is still spry and full of life! He loves adventures and playtime. His previous owner said he has lived with kids of…
Denver Animal Shelter • Denver, CO
10+ years
GEORGE
George is looking for a new home for his golden years! George is a very calm dog who loves cozy spots to cuddle up in. He walks well on leash and is a…
Aurora Animal Care • Aurora, CO
Senior confirmed
MUSCLE TEE
This small but beefy guy is Muscle Tee! He is hilarious, super sweet and will keep you laughing. Don't let his age fool you! He has plenty of energy a…
Denver Animal Shelter • Denver, CO
10+ years
LOREAL PARIS
Meet Loreal Paris, a sweet, loving, and wonderfully goofy boy! He’s full of joy and always ready to make you smile. Loreal Paris loves toys of all kin…
Adams County Animal Shelter • Brighton, CO
Senior confirmed
RUBY
RUBY is a senior female Bloodhound, medium size, located at the Humane Society of the Pikes Peak Region — Pueblo in Pueblo, CO. Senior dogs make wonde…
Humane Society of the Pikes Peak Region — Pueblo • Pueblo, CO
10+ years
MILO
Hi there, my name is Milo! I’m a super sweet, calm senior dog looking for my perfect retirement home. I’m ready to spend my golden years with a loving…
Larimer Humane Society • Fort Collins, CO
10+ years
FLYNN
FLYNN is a senior male Black Mouth Cur, medium size, located in Pueblo, CO. He is at the Humane Society of the Pikes Peak Region — Pueblo; senior dogs…
Humane Society of the Pikes Peak Region — Pueblo • Pueblo, CO
10+ years
CARRERA
Hi there! My name is Carrera, and I may be a tiny senior gal, but don’t let my age fool you... I’m full of spunk, zoomies, and personality! I absolute…
Larimer Humane Society • Fort Collins, CO
Senior confirmed
SHEENA
Meet Sheena! Sheena is a gentle soul who is looking for a warm, consistent, and loving home! She takes some time to warm up, but is a very loyal compa…
Aurora Animal Care • Aurora, CO
Senior confirmed
CHICO
Meet Chico! This handsome guy is looking for a new home that is comfy, loving, and low traffic! Chico is as sweet as can be with the people he is comf…
Aurora Animal Care • Aurora, CO
10+ years
Kevin
This standard Australian Shepherd is 5 yrs old, 50 lbs, and is a very well-behaved boy who sits, shakes and loves to fetch! Kevin has not spent a lot …
Mountain Pet Rescue • Tabernash, CO
Senior confirmed
MUDD
Mudd is fluffy bundle of energy! He is super sweet and loves walks and cuddles.
Denver Animal Shelter • Denver, CO
10+ years
HAPPY
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 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.