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Border Collie puppies and dogs in Boulder, Colorado

Looking for a Border Collie puppy or dog in Boulder, Colorado? Adopt a Pet can help you find an adorable Border Collie near you.

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Adopt a Border Collie near you in Boulder, Colorado

These Border Collies are available in Boulder, Colorado.
Photo of Squiggle

Squiggle

Border Collie

Female, 7 mos
Boulder, CO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
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Story
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Photo of Cassidy

Cassidy

Labrador Retriever Border Collie

Female, Young
Boulder, CO
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, Good with cats, House-trained, Spayed or Neutered,
Story
Meet Cassidy – A Loyal and Happy Lab/Collie/Shepherd Mix! DOB: 10/3/2022 | Weight: 76 pounds | Female Cassidy is a stunning Lab/Collie/Shepherd mix with a big heart and an even bigger personality. At 3 years old, she’s in the prime of her life—healthy, energetic, and full of love to give. Cassidy is known for her loyal spirit and happy demeanor. She absolutely adores her people, and with her affectionate nature, she’ll make a wonderful companion for an active and dedicated family. Breed Info: A mix of Labrador Retriever, Collie, and Shepherd, Cassidy combines intelligence, energy, and devotion. These breeds are known for their trainability and loyalty, but also for needing structure, exercise, and mental stimulation. Cassidy is a great candidate for agility work, hiking adventures, or simply being your best buddy in life. Special Notes: Cassidy is a spirited girl who loves to explore! She does have a talent for jumping fences, so she will require a home with a very secure, tall fence (or someone committed to leash walks and supervised play). She is currently enrolled in a basic training course and making wonderful progress. Continued training will be key to helping her thrive and channel her energy in positive ways. ‍‍ Owner Responsibilities: Cassidy’s new family will need to: Provide daily exercise and playtime. Continue with her training to reinforce good manners. Ensure a secure environment to keep her safe. Offer patience, structure, and plenty of love. &#226&#154&#150&#239&#184&#143 Things to Consider: Cassidy is best suited for an active household that can keep up with her energy. Landlords and property owners should be checked if you rent, as breed restrictions sometimes apply. Families should be prepared for her enthusiasm—she may not be best for homes with toddlers, but will love older children. The 3-3-3 Rule: Remember the adjustment period: 3 days to decompress. 3 weeks to learn your routine. 3 months to fully feel at home. Vet Care: Once adopted, getting Cassidy to your vet is important for a checkup and to establish ongoing care. &#226&#157&#164&#239&#184&#143 Why Cassidy Will Be a Great Addition: Cassidy isn’t just looking for a home—she’s looking for her forever partner. She has all the qualities of a best friend: loyal, protective, playful, and loving. With her happy spirit and willingness to learn, she’ll bring joy and companionship to the right home. She will thrive with someone who sees her spirited energy not as a challenge but as part of her charm. Cassidy is ready to love and be loved—could she be the one for you? Adoption Information If you are interested in adopting this wonderful dog, please complete an adoption application by visiting: https://www.ozzieandfriendsrescue.org/adoptions Thank you for considering adoption through Ozzie and Friends Rescue, a Los Angeles–based rescue dedicated to giving dogs a second chance at a loving home. Our team carefully reviews every application and will reach out to help match you with the right dog for your home and lifestyle. You may be seeing our dogs listed in your state because we work hard to give as many of our rescue dogs as possible the opportunity to be seen by loving families beyond our local area. While we are based in Los Angeles, we expand our reach throughout the Western United States and the Midwest to help more dogs find the forever homes they deserve. We understand that transportation and adoption fees can sometimes feel like a big commitment, and we truly appreciate every person who considers opening their heart and home to a rescue dog. Our goal is simply to give these dogs the best chance at being seen, adopted, and loved. Ozzie and Friends Rescue coordinates safe and reliable transport so adopted dogs can travel to their new homes across the Western United States, Canada, and the Midwest. We can’t wait to help you meet your next fur-ever best friend. March 12, 2026, 9:53 am

Or, how about these Border Collies in cities near Boulder, Colorado

These Border Collies are available for adoption close to Boulder, Colorado.
Photo of Squiggle

Squiggle

Border Collie

Female, 7 mos
Boulder, CO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
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Story
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Special Needs
Photo of Maisie

Maisie

Border Collie Australian Cattle Dog

Female, Adult
Louisville, CO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Not good with kids, Good with dogs, Not good with cats, Needs special attention, Needs experienced adopter, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
I adopted Maisie from the Boulder Humane Society in November, 2021. She was 3-4 months old and had been picked up in New Mexico. She was on medication for anxiety and I was told she should be homed with another older dog and kept away from children. I live in a condo with a small deck area and I am very active outdoors. We walk 3 times a day, hike, ski, etc. She is a good dog if you are active outdoors or have a yard. She loves being outside. She went through training with the High Drive Dog school and did very well and she is good on a leash. She is off leash often and is good with other dogs unless they are aggressive towards her. I have trained her to avoid those dogs. She is very smart and learns quickly. She has good recall when I call her. She has some anxiety during thunderstorms, fireworks and the Vet. I am moving to be near my grandkids and she is not good around children. I use the muzzle but quick, unpredictable moves are an issue for her so I am looking to re-home her.
Photo of Rocky

Rocky

Border Collie

Male, Senior
Longmont, CO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Not good with kids, Good with dogs, Needs experienced adopter, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Sweet, loyal 10 year old border collie mix in need of a new home. Rocky has lived in Boulder with his people for 10 years, since being adopted as a puppy. Sadly his parents have both gone into care and can no longer look after him. Rocky has up to date vaccinations, loves long walks and swims and is happy in the car. He gets mild separation anxiety and thunderstorm anxiety and sometimes nips ankles due to his herding instinct. He has never bitten. He gets along with neutered adult dogs but should not be loose around puppies or children. He is in need of an experienced dog owner who will help him lose some weight and enjoy his final years. Rocky knows basic commands and walks well on a leash. He’s a very loving, sweet dog who will adore his new owners.
Photo of 726-26

726-26

Border Collie

Male, Puppy
Brighton, CO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Spayed or Neutered, Shots are up-to-date,
Story
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Photo of 722-26

722-26

Border Collie

Male, Puppy
Brighton, CO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Spayed or Neutered, Shots are up-to-date,
Story
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Photo of 723-26

723-26

Border Collie

Female, Puppy
Brighton, CO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Spayed or Neutered, Shots are up-to-date,
Story
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These pups are in Boulder, Colorado too!

Below are our newest added Border Collies available for adoption in Boulder, Colorado. To see more adoptable Border Collies in Boulder, Colorado, use the search tool below to enter specific criteria!
Photo of Hassan

Hassan

Australian Kelpie Siberian Husky

Male, Adult
Boulder, CO
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, Good with cats, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Meet Hassan Breed: Husky / Kelpie Mix Sex: Male DOB: July 17, 2022 Weight: 66 pounds Health: Healthy and vaccinated Hassan is a striking, intelligent boy with soulful eyes and a strong, resilient heart. He was abandoned and rescued from a very busy roadway, where he was dangerously close to being hit by cars. Thankfully, he was saved in time — and now he’s ready for the safe, loving forever home he deserves. Despite his difficult beginning, Hassan has remained loyal, playful, and full of life. Personality Hassan lives peacefully with other dogs and enjoys being around humans. He loves going out for walks, running, and exploring the world around him. Playtime is one of his favorite things — especially chasing a ball or carrying around plush toys. When he first meets new people, Hassan can be a little reserved or cautious. But once he gets to know you, his personality softens beautifully, and he becomes affectionate and loyal. He just needs a little time to feel secure. Hassan does not like sharing his food, so he would do best in a home where feeding routines are managed thoughtfully and respectfully. Breed Info: Husky / Kelpie Mix This is a smart, athletic mix that typically brings: High intelligence and problem-solving ability Strong loyalty to their people Active energy that thrives with exercise A desire for engagement and purpose Hassan will do best in a home that enjoys walks, outdoor time, and mental stimulation. Owner Responsibilities Hassan will thrive with: Daily exercise (walks, running, play sessions) Continued positive reinforcement training Clear structure and consistency Managed feeding routines due to food guarding Patience while he builds trust with new people He is not difficult — he simply needs leadership, routine, and love. &#226&#154&#160&#239&#184&#143 Things to Consider Before Adopting Before bringing Hassan home, please consider: Do you have time for daily exercise and enrichment? Is your home and lifestyle stable long-term? Are pets allowed where you live? Can you provide structure and manage feeding separately if needed? Adoption is a lifelong commitment, especially for an active breed mix Hassan deserves a home that won’t give up on him. Vet Care Although Hassan is healthy and vaccinated, adopters should schedule a visit with their own veterinarian as soon as possible after adoption to establish care and continue his wellness routine. The 3-3-3 Rule First 3 days: Hassan may be cautious and observant as he adjusts. First 3 weeks: He’ll begin to learn your routine and feel secure. First 3 months: Trust deepens, and his loving, loyal personality truly shines. Patience and consistency will help him flourish. Why Hassan Is Special Hassan survived being abandoned and left in danger — yet he still chooses trust. He is playful, intelligent, and deeply loyal once he bonds. He deserves stability, safety, and someone who will show him that he is finally home for good. If you’re ready for an active, devoted companion who will stand by you with loyalty and heart, Hassan is waiting for you If you are interested in adopting this amazing dog, please follow the link https://www.ozzieandfriendsrescue.org/adoptions and fill out an application  Thank you for choosing Ozzie and Friends Rescue. We can’t wait to connect you with your new fur-ever friend. Ozzie and Friends Rescue makes arrangements for all dogs adopted to be transported all across the Western United States, Canada and the Midwest.   March 7, 2026, 9:29 am
Photo of Maya

Maya

Australian Kelpie Terrier (Unknown Type, Medium)

Female, Young
Boulder, CO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Good with dogs, Spayed or Neutered,
Story
Meet Maya – A Spirited Sweetheart Looking for Her Forever Home! Name: Maya Breed: Australian Kelpie–Terrier Mix DOB: December 7, 2024 Weight: 46 lbs  Spayed, Vaccinated, and Healthy About Maya: Maya is a beautiful, medium-sized girl with a bright mind and a playful heart. She’s active, friendly, and full of curiosity. Whether it’s chasing a ball, going for a walk, or exploring the backyard, Maya is always up for an adventure. She loves people and enjoys being part of the action—but when playtime is over, she’s happy to curl up near her favorite humans. Breed Info – Australian Kelpie x Terrier: Australian Kelpies are highly intelligent, loyal working dogs with strong herding instincts. Terriers are energetic, clever, and full of personality. As a mix, Maya is the perfect blend of smart and spirited. She’ll thrive in a home that can provide both physical activity and mental stimulation. Expect a dog who learns quickly, bonds deeply, and loves to stay busy. Owner Responsibilities: Provide daily exercise (walks, playtime, or training games) Offer basic obedience training and positive reinforcement Feed a healthy diet and maintain regular veterinary care Include Maya in family life—she’s not a dog to leave alone or chained outside Keep her mentally and physically active to prevent boredom Provide love, patience, structure, and a sense of safety Things to Consider Before Adopting Maya: Time & Energy: Maya needs more than a quick potty break. She’ll do best with a person or family who is active and engaged. Finances: Dogs require ongoing expenses (food, vet visits, flea/tick prevention, grooming, toys, etc.). Housing Rules: Make sure your landlord allows pets—especially medium-to-large breeds. Allergies: Check for pet allergies in the household. Lifelong Commitment: Maya could live 12–15+ years. She’s not a temporary guest—she’s family. No Outdoor Chains or Isolation: Maya needs interaction, exercise, and affection. Leaving her tied outside is not safe or fair to her well-being. Why Maya Will Be a Great Addition: Maya is intelligent, affectionate, and ready to love her people with her whole heart. She’s great for active individuals, couples, or families who want a smart, loyal companion to join them on walks, hikes, or playtime in the yard. With the right environment and care, Maya will blossom into your most loyal friend—one who makes you smile every single day. Maya is ready to run, play, and love her way into your life—are you ready to meet your new best friend? If you are interested in adopting this amazing dog, please follow the link https://www.ozzieandfriendsrescue.org/adoptions and fill out an application  Thank you for choosing Ozzie and Friends Rescue. We can’t wait to connect you with your new fur-ever friend. Ozzie and Friends Rescue makes arrangements for all dogs adopted to be transported all across the Western United States, Canada and the Midwest.September 13, 2026, 12:09 am
Photo of Willow

Willow

Australian Kelpie Terrier (Unknown Type, Medium)

Female, Puppy
Boulder, CO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Good with dogs,
Story
Meet Willow A Tiny Survivor with a Bright Future Waiting Ahead ❤️ Breed: Australian Kelpie Mix Gender: Female | DOB: May 01, 2026 | Weight/Expected Size: 27 lbs (Expected Medium) Good With: Dogs ✔️ | Cats: Unknown | Kids ✔️ Medical: ✔️ Spay Pending (Age-Appropriate) | ✔️ Current for Age Vaccinations | ✔️ Microchipped Location: Los Angeles, California Transportation: Ozzie and Friends Rescue provides safe transportation to approved adopters throughout the United States. https://www.ozzieandfriendsrescue.org/adoptions ❤️ Personality, Breed Information & Willow's Story Willow's story is one of resilience and hope. She was found starving and alone, trying to survive without her mother or anyone to protect her. At just seven weeks old, she should have been learning, playing, and feeling safe—not searching for food or shelter. Thankfully, rescuers stepped in before it was too late, giving Willow the chance to experience the love and care every puppy deserves. Today, Willow is a healthy, happy puppy whose joyful personality shines brighter every day. She has an affectionate heart and a playful spirit that's impossible not to love. She enjoys discovering new things, playing with toys, and bouncing around with puppy enthusiasm before happily settling down for cuddles. Willow loves people and enjoys being close to her family. She'll gladly follow you from room to room, eager to see what you're doing and hoping to be included in every adventure. Her sweet, trusting nature makes her an easy puppy to fall in love with. As an Australian Kelpie Mix, Willow is expected to grow into an intelligent, loyal, and energetic companion. Kelpies are highly trainable, eager to please, and thrive when given both mental and physical enrichment. With early socialization and positive reinforcement, Willow has everything she needs to become an incredible family dog. Willow would thrive in a home that offers: Plenty of love and companionship Positive reinforcement training Daily puppy playtime and exercise Interactive toys and mental enrichment Continued socialization A consistent daily routine A safe indoor home where she's treated as part of the family A lifetime of love, patience, and commitment Willow has already survived more than any puppy should have to face. Now she's ready to spend the rest of her life knowing what it feels like to be safe, loved, and truly home. Training, Adjustment & What to Expect Like all puppies, Willow is learning something new every day. Her new family should expect normal puppy behaviors such as chewing, teething, house-training, and plenty of curiosity. Please remember the 3-3-3 Rule: 3 Days to decompress and begin feeling safe 3 Weeks to learn your household routine 3 Months to fully settle into family life Willow will benefit from: Positive reinforcement training House-training and consistent routines Puppy-safe exercise and supervised play Continued socialization Enrichment activities and interactive toys Plenty of patience, love, and encouragement With guidance and consistency, Willow will grow into a confident, affectionate, and devoted companion. Owner Responsibilities & Veterinary Care Bringing home a puppy is a lifelong commitment that includes training, veterinary care, exercise, and companionship. Willow will need: Completion of her puppy vaccination schedule Spaying when age-appropriate Monthly flea, tick, and heartworm prevention A nutritious diet for healthy growth Daily exercise appropriate for her age Continued obedience training and socialization A safe, loving indoor home We recommend scheduling a wellness examination with your veterinarian shortly after adoption to establish care and ensure Willow continues to thrive. Adoption Information If you are interested in adopting Willow, please complete an adoption application by visiting: https://www.ozzieandfriendsrescue.org/adoptions Thank you for considering adoption through Ozzie and Friends Rescue, a Los Angeles-based nonprofit dedicated to giving dogs a second chance at a loving home. We proudly coordinate safe transportation for approved adopters throughout the United States. Willow has already shown incredible strength for such a tiny puppy. Now all she needs is a forever family to fill the rest of her story with love, happiness, and unforgettable memories. ❤️        September 13, 2026, 12:09 am

Search for a Border Collie puppy or dog

Use the search tool below to browse adoptable Border Collie puppies and adults Border Collie in Boulder, Colorado.

Border Collie puppies and dogs in nearby cities

Related breeds in Boulder, Colorado

Border Collie shelters & rescues in Boulder, Colorado

There are animal shelters and rescues that focus specifically on finding great homes for Border Collie puppies in Boulder, Colorado. Browse these Border Collie rescues and shelters below.

Here are a few organizations closest to you:

Shelter

2.1 miles

Humane Society of Boulder Valley

2323 55th Street, Boulder, CO 80301

Pet Types: cats, dogs, small animals

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Rescue

16.3 miles

Lifeline Puppy Rescue

15171 Riverdale Rd, Brighton, CO 80602

Pet Types: dogs

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Rescue

19 miles

Mile High Canine Rescue, Inc.

Mead, CO 80542

Pet Types: dogs

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Shelter

20.9 miles

Foothills Animal Shelter

580 McIntyre St., Golden, CO 80401

Pet Types: cats, birds, dogs, rabbits, reptiles, small animals

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Shelter

22.1 miles

Soul Dog Rescue

1245 Factory Circle, Fort Lupton, CO 80621

Pet Types: cats, dogs

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Rescue

22.1 miles

Desiderata Rescue - West Transport

Ft Lupton, CO 80621

Pet Types: cats, dogs

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Rescue

23.1 miles

Ace of Hearts Dog Rescue - CO Transport Stop

711 Walnut St, Boulder, CO 80203

Pet Types: dogs

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Rescue

24.5 miles

A Friend of Jack Rescue

Denver, CO 80223

Pet Types: dogs

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Rescue

27.1 miles

Evergreen Animal Protective League

PO BOX 2517, Evergreen, CO 80437

Pet Types: cats, dogs

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Rescue

29.1 miles

PawsCo

8200 E Pacific Pl, #205, Denver, CO 80231

Pet Types: cats, dogs

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Looking for a specific shelter or rescue?

If you're not seeing what you're looking for, try our shelter and rescue search. We have more than 17,000 organizations in our database with furry pals waiting for a new home!

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Want to learn more about adopting a Border Collie puppy or dog?

We've got all the info you need on adopting and caring for a Border Collie puppy. Check out the links below for everything you ever wanted to know about Border Collie puppies and adults.

Border Collie basics

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Where do Border Collies come from? How many types of Border Collies are there? From the history of the breed to question about average height, weight and size, brush up on these basic facts about the Border Collie.

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