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Border Collie puppies and dogs in Mountainside, New Jersey

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

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Adopt a Border Collie near you in Mountainside, New Jersey

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Or, how about these Border Collies in cities near Mountainside, New Jersey

These Border Collies are available for adoption close to Mountainside, New Jersey.
We'll also keep you updated on Augustus Gloop's adoption status with email updates.
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Augustus Gloop

Border Collie Jindo

Male, 4 yrs
New York, NY
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with dogs, Spayed or Neutered, Shots are up-to-date,
Story
**Located in Korea** Finishing heartworm treatment. Rescued from the local shelter in South Korea the same day he was scheduled to be euthanized. He is estimated to be up to 2 years old and looks like a Border Collie and Jindomix. He is not very interested in playing with other dogs and is more interested in exploring and going for walks. He doesn't have separation anxiety, but when he's with people, he's always hovering over them or asking to be petted. However, it's better to give him time to adjust to the new dog, with a reasonable distance, rather than showing affection. He has a demanding bark and doesn't like to be chased by other dogs, is not picky about food and barks at strangers. Recommended to be adopted by a family with no children and a regular routine lifestyle.ALL adoptions require a completed application and final contract. The application can be found at  WaldosRescue.org  and once you are approved to adopt you will be put in touch with the foster to see if it’s a good match. We are a RESCUE not a shelter. We conduct veterinary and personal reference checks during the application approval process. We are unable to contact every applicant for every dog.  We will select the best applicant for each dog, based on the dogs needs. Waldos Rescue Pen is a 501c3 whose primary focus is rescuing dogs from the euthanasia list from high kill shelters throughout the United States. ##2152589##

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We'll also keep you updated on Ace's adoption status with email updates.
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Ace

Border Collie Chesapeake Bay Retriever

Male, Adult
Old Bridge, NJ
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Not good with dogs, Not good with cats, Needs experienced adopter, House-trained, Shots are up-to-date,
Story
Meet Ace! This handsome boy is looking for a fitting forever home to match his energetic, enthusiastic, and boisterous personality. Ace is originally from a family farm in South Jersey, born in May 2024 of a Chesapeake Bay Retriever mother and Border Collie father. As the family on the farm was not able to take on any more animals at the time of his puppyhood, he found his way to our current residence in NJ. Ace has some special medical notes- he has a bald spot on his back from running under an electric fence as a puppy, and has experienced 2 partial seizure-like episodes in the past. Because of this Ace needs a confident, loving, and experienced handler that uses positive reinforcement! He would be best being pampered as an only child, as he has a tough time getting along with other dogs or cats. Although he can be slow to warm to unfamiliar people at times, he is truly a sweet and fun spirited boy who would love nothing more than to be your best friend with time and patience 🐾

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We'll also keep you updated on Trina's adoption status with email updates.
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Trina

Border Collie Terrier (Unknown Type, Medium)

Female, Adult
Garfield, NJ
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Good with dogs, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Hi there! My name is Trina. I'm really sweet but it might take me some time to warm up. I'm a Border Collie/Terrier mix who loves to play fetch or lay on the floor next to the couch. I listen well, I'm good on the leash, I play nice with other dogs, and I'm house broken. I'm just too strong for my disabled owner.

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We'll also keep you updated on Pythagoras's adoption status with email updates.
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Pythagoras

Border Collie Labrador Retriever

Female, 4 mos
New York, NY
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Good with dogs, Good with cats, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Pythagoras was found as a stray in Alabama when she was just 3 months old. She was born missing her right front paw—but don’t worry, she didn’t get the memo that this should slow her down. She keeps up with life just like any other four-legged pup, from zooming up and down stairs to jumping into snow banks. Pythagoras is exactly what a puppy should be: pure sunshine. She’s incredibly sweet, loves people, and is friendly with other animals. She listens well and is very eager to be a good girl. There’s truly not a mean bone in her body—just joy, curiosity, and a whole lot of love to give. Pythagoras is fostered in Pine Brook, NJ, and is available for local or out-of-state adoption as long as the adopter can travel to meet her. To get the adoption process started, please send us an application at https://bit.ly/rosr-adopt-foster.

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We'll also keep you updated on Kubo Lonestar's adoption status with email updates.
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Kubo Lonestar

Border Collie Terrier (Unknown Type, Medium)

Male, Adult
Rockaway, NJ
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Not good with cats, House-trained, Spayed or Neutered,
Story
FOREVER HOME NEEDED!!  Kubo came to us in 2020, and was adopted relatively quickly! Unfortunately, his owners could not handle Kubo and it led to them needing to return him. He was terrified upon being back at the kennel, a completely different dog than what had came to us originally. We found Kubo a wonderful foster home where he has been for 2 years! He never receives ANY interest . We are now desperate. Kubo's foster is returning to work and will not have enough time to care for him. This poor boy needs his FOREVER home ASAP!!! Kubo is a very smart 5 year old cuddle bug. He LOVES to cuddle on his person and be around them. He has been undergoing training and has come such a long way. Kubo is good with other dogs but can be very vocal when seeing them outside which is part of what his training has consisted of. He would do amazing in a lower traffic home with adults/older teens. If you are interested in Kubo, visit EHRDOGS.ORG and fill out an application for KUBO (function () { // Only on animal detail pages if (!/\/animals\/detail/i.test(location.pathname)) return; // Debounce to avoid double-fire (touchend + click, etc.) var lastNavAt = 0; function toFullSize(url) { try { var u = new URL(url, location.href); u.searchParams.delete('width'); u.searchParams.delete('height'); return u.toString(); } catch (e) { return url || ''; } } function looksLikeAnimalPhoto(url) { return /\/pictures\/animals\/\d+\/\d+\/[^?#]+\.(jpg|jpeg|png|gif)/i.test(url || ''); } function handler(e) { var el = e.target; if (!el) return; // Find the closest anchor or image in the click path var a = el.closest ? el.closest('a') : null; var img = el.closest ? el.closest('img') : null; var url = ''; // Prefer anchor href if it points to an animal photo if (a && a.getAttribute) { var href = a.getAttribute('href') || ''; if (href && (href.indexOf('/pictures/animals/') !== -1 || looksLikeAnimalPhoto(href))) { url = href; } } // Otherwise fall back to the image src if (!url && img && img.getAttribute) { var src = img.getAttribute('src') || ''; if (src && (src.indexOf('/pictures/animals/') !== -1 || looksLikeAnimalPhoto(src))) { url = src; } } if (!url) return; // Absolute URL + full-size version try { url = new URL(url, location.href).toString(); } catch (_) {} url = toFullSize(url); // Stop PrettyPhoto (and any other delegated click handlers) e.preventDefault(); e.stopPropagation(); if (e.stopImmediatePropagation) e.stopImmediatePropagation(); // Debounce var now = Date.now(); if (now - lastNavAt < 500) return; lastNavAt = now; // SAME TAB navigation to the full-size image location.href = url; } // Capture phase is the key: we get the event before PrettyPhoto. ['click', 'pointerup', 'touchend'].forEach(function (evt) { document.addEventListener(evt, handler, true); }); })(); January 10, 2026, 11:10 pm

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We'll also keep you updated on Sombra SCAS's adoption status with email updates.
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Sombra SCAS

Border Collie

Female, Young
Rockaway, NJ
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Good with dogs, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
This sweet and spirited girl is Sombra. She weighs around 40 pounds and is approximately 1 year old. Poor Sombra was found at a rural country church with a short rope around her neck and the other end tied to a railing. A kind person saw her and took her to the local animal control. Now she is with Eleventh Hour Rescue waiting to find a REAL home with people who will love her. Sombra LOVES to play and does great with other dogs. She is currently being fostered at Pack Mentality LLC and enjoys running around with the other dogs. She is at her best when she can spend her days being active. Sombra is treat motivated which helps with training, she walks well on a leash but needs to work on her manners when other dogs pass by. She would very much prefer to be off leash when she’s meeting new friends. Sombra is housebroken and her foster said she is super sweet, and will make a great companion! If you'd like to meet Sombra, please fill out an adoption application at www.ehrdogs.org and be sure to mention her name - SOMBRA SCAS! (function () { // Only on animal detail pages if (!/\/animals\/detail/i.test(location.pathname)) return; // Debounce to avoid double-fire (touchend + click, etc.) var lastNavAt = 0; function toFullSize(url) { try { var u = new URL(url, location.href); u.searchParams.delete('width'); u.searchParams.delete('height'); return u.toString(); } catch (e) { return url || ''; } } function looksLikeAnimalPhoto(url) { return /\/pictures\/animals\/\d+\/\d+\/[^?#]+\.(jpg|jpeg|png|gif)/i.test(url || ''); } function handler(e) { var el = e.target; if (!el) return; // Find the closest anchor or image in the click path var a = el.closest ? el.closest('a') : null; var img = el.closest ? el.closest('img') : null; var url = ''; // Prefer anchor href if it points to an animal photo if (a && a.getAttribute) { var href = a.getAttribute('href') || ''; if (href && (href.indexOf('/pictures/animals/') !== -1 || looksLikeAnimalPhoto(href))) { url = href; } } // Otherwise fall back to the image src if (!url && img && img.getAttribute) { var src = img.getAttribute('src') || ''; if (src && (src.indexOf('/pictures/animals/') !== -1 || looksLikeAnimalPhoto(src))) { url = src; } } if (!url) return; // Absolute URL + full-size version try { url = new URL(url, location.href).toString(); } catch (_) {} url = toFullSize(url); // Stop PrettyPhoto (and any other delegated click handlers) e.preventDefault(); e.stopPropagation(); if (e.stopImmediatePropagation) e.stopImmediatePropagation(); // Debounce var now = Date.now(); if (now - lastNavAt < 500) return; lastNavAt = now; // SAME TAB navigation to the full-size image location.href = url; } // Capture phase is the key: we get the event before PrettyPhoto. ['click', 'pointerup', 'touchend'].forEach(function (evt) { document.addEventListener(evt, handler, true); }); })(); February 5, 2026, 10:28 am

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Border Collie shelters & rescues in Mountainside, New Jersey

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

Here are a few organizations closest to you:

Rescue

18.5 miles

Waldo's Rescue Pen

New York, NY 10038

Pet Types: dogs

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Rescue

19.2 miles

Rain Or Shine Rescue

New York, NY 10012

Pet Types: cats, dogs

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Rescue

19.4 miles

Rescue City

Brooklyn, NY 11214

Pet Types: dogs

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Rescue

19.6 miles

Eleventh Hour Rescue

P.O. Box 218, Rockaway, NJ 07866

Pet Types: cats, dogs

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Rescue

19.7 miles

No Dogs Left Behind - NY Transports from China

New York, NY 10001

Pet Types: cats, dogs

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Rescue

19.9 miles

PupStarz Rescue - NY

New York, NY 10010

Pet Types: cats, dogs, rabbits

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Rescue

19.9 miles

Sean Casey Animal Rescue

153 E. 3rd Street, Brooklyn, NY 11218

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

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Rescue

20 miles

Social Tees Animal Rescue

Manhattan, NY 10009

Pet Types: cats, dogs

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Rescue

20.4 miles

Deep South Canine Rescue North East

Elmwood Park, NJ 07407

Pet Types: dogs

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Shelter

21 miles

Humane Society of New York

306 East 59th Street, New York, NY 10022

Pet Types: cats, dogs

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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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