Border Jack

22-32 lbs
16-22"
United States
Border Collie
Jack Russell Terrier
Border Collie Jack

The Border Jack is one of the many unique and special breeds of dog out there, waiting to meet you and shower you with affection. If you have a Border Jack already, you’ll know all about its sparkling personality and reservoirs of energy. If you’re learning about this hybrid for the very first time, welcome — read on.

In this guide to the Border Collie Jack Russell mix, you’ll learn everything you need to know about the breed, including:

Border Jack breed overview

A mix between a Border Collie and a Jack Russell, a Border Jack is a lovely dog with a sharp mind and a playful demeanor. Energetic, unfussy and loyal, the Border Jack is a great dog for first-time pet parents — provided they can keep up with it.

On average, although it’s a broad spectrum, the Border Jack is likely to cost you approximately $600 to $1,500 a year in vet bills. A pet insurance plan may cover some of those costs. 

Here, you can compare the best insurance providers to find the right quote for you and your canine friend. And, while you’re there, why not consider a wellness plan, which will cover the cost of your pup’s routine vet treatment and checks?

purpose Purpose
Agility, Companion
history Date of Origin
Unknown
ancestry Ancestry
Border Collie, Jack Russell Terrier

Border Jack Health

Average Size
Male Border Jack size stats
Height: 16-22 inches Weight: 22-32 lbs
Female Border Jack size stats
Height: 16-22 inches Weight: 22-32 lbs

Border Jack Breed History


We don’t have much in the way of specific information about the history of the Border Jack other than its parentage: we know it’s a cross between a Border Collie and a Jack Russell. Fortunately, we know a good deal about both of these breeds. 

The Jack Russell is a hard-working terrier able to rat out all sorts of animals (including rats). Originally designed in England by a man called Reverend John Russell in the 19th century to hunt foxes, the Jack Russell is a merciless, energetic and relentless dog. 

The Border Collie, meanwhile, also originated in England, but also Scotland. The version with which we are familiar may date back to the 17th century. A dog that’s exceptionally easy to train, it was bred to herd sheep and over the last few centuries has been used for things like bomb detection and police work, as well as helping the blind.

The Border Jack is, of course, a blend of the characteristics of these two breeds. It originated in the United States, where the intention between the breeding may have been to create a breed that could perform in a dog relay race called sports flyball.

Border Jack Breed Appearance


A full grown Border Collie Jack Russell mix is likely to stand around 16 to 22 inches high, which is about medium for a dog, and will probably weigh in the region of 22 to 32 lbs (medium again).

This is, of course, because it’s inheriting its physical traits from the Border Collie and the Jack Russell, who aren’t too far apart from each other on the dog spectrum. 

It may be more likely to look like the Jack Russell and have a small head, narrow body, and floppy ears. It is likely to look smart and alert, with almond- or oval-shaped eyes.

Because the Jack Russell was bred to be a hunter of (relatively small) animals, the bite on a Border Jack is powerful and the breed will be strong for its size because of its herding and hunting genes. 

Similar breeds to the Border Jack


In love with the Border Jack? We’re sure you are. You might also be interested to learn more about these breeds, all of whom are similar to this Border Collie Jack Russell mix:

Border Jack Breed Maintenance


The most significant maintenance requirement of a Border Jack is the amount of exercise it will need. As long as you provide this dog with a huge amount of exercise, it’s an extremely flexible breed happy to be in an apartment or a large house. 

Don’t underestimate the energy levels of this breed; make sure you know what you’re getting yourself in for when you bring one of those Border Jack puppies home. Take it out whenever you go out, if possible; it will love joining you for a walk or a jog because it gets a huge amount of pleasure just being in your company.

In terms of grooming, the Border Jack is low-maintenance. You’ll need to do a moderate amount of brushing, to reduce the amount of hair that is shed around the house, and you should of course check and clean its ears regularly — weekly at least — especially because of this breed’s propensity for hearing problems.

Brush your furry friend’s beautiful teeth every few days at the very least to ward off problems with tartare and disease.

Border Jack health risks

As well as hip dysplasia, a problem that is common in the majority of dogs, the Border Jack is prone to a few problems we will go into below. This is a dog that should be fit and healthy for pretty much all of its life, which should be 15 years if it’s looked after with care and kindness. 

During the course of its lifetime, the Border Jack may be particularly susceptible to:

Progressive retinal atrophy

A Border Jack affected by progressive retinal atrophy will gradually go blind because of the death of the rod cells in their retinas. Luckily, because the progression of the condition is so slow, your dog may not even let on that anything is wrong; they may adapt to life with increasingly poor eyesight. 

You will notice the condition eventually, of course. Your dog’s eyes will begin to succumb to cataracts, for example, and it will behave more tentatively as it begins to lose its day vision (the loss of night vision comes first). Be on the lookout at the early stages for bumping into walls, dilated pupils, and the eyes taking on a gray color.

As with any progressive condition, treatment here is about managing the problem. Your dog may be perfectly comfortable and happy if you make accommodations and slight changes around the house, so there’s no need to be overly concerned about their declining eyesight.

Antioxidants may help slow down the progression of the illness. Generally, although a vet might be able to remove a dog’s cataracts, they may be reluctant to in this scenario because the removal may cause more issues than it solves.


Collie eye defect

A condition that will be present in an affected dog from birth, Collie eye defect affects mainly Border Collie-type dogs, as the name suggests. A vet should be able to tell whether or not your dog has the problem at around two months of age. 

Collie eye defect can cause a problem in the development of the blood vessels in the tissue under a dog’s retina. It can also cause the sclera to thin and the retina to detach. The problem can cause vision loss — and blindness in some cases — but doesn’t always affect a dog. Some dogs can have Collie eye defect and have no adverse effects at all. 

If you notice that your Border Jack is bumping into things; fears going outside; has pale spots in their eye; or isn’t blinking when you wave your fingers close to their face, they may have Collie eye defect and it may be negatively affecting their vision. If a vet diagnoses the condition, it will probably be graded 1-5 in terms of severity.

You may not need to treat the defect if your dog is still leading a full and happy life. But if you do opt for treatment (there is no cure), you will be able to choose between laser surgery, which may minimize the effects; reattaching the detached retina through surgery; and using cryosurgery to destroy any damaged cell tissue.

Deafness

If you notice that your Border Jack isn’t responding to normal prompts like calling its name, squeaking a toy nearby, or other dogs barking, it could well have begun to experience hearing loss — a sad but manageable development in any dog’s life. 

Your dog could be congenitally deaf, meaning that it was unable to hear from the first few weeks of its life. In a way, although it would be sad that your dog had never really known what it was like to hear, this condition can be easier because your pup will be used to the condition and will have a great deal of time to become comfortable with it.

You’ll know from a young age if your pup has congenital deafness but if the condition is acquired, it could be the result of one of many things: inflammation; a tumor; or drug toxicity.

While there’s no reason to assume the worst — your dog could very easily just be going deaf in old age, as humans do — it’s always best to direct your questions to a trusted vet. They will want to examine the ear and inspect it for things like potential blockages. 

Surgery can be performed on tumors in the ear, and hearing aids — although expensive — can be prescribed for dogs who are going deaf in old age. As they are more vulnerable, deaf dogs need various helping hands to help them navigate the world safely. But there is no reason whatsoever that their life can’t still be happy and pain-free.

Are you the pet parent of a Border Jack? Make sure your pup is covered for any health scares by comparing top-rated pet insurance plans in seconds.

Feeding a Border Jack — what’s the best diet?

Your Border Jack will love you if you give it lots of high-quality, nutrient-rich food full of animal proteins to keep it healthy and full of energy. 

Do your research and avoid harmful ingredients and things like fillers. If you can afford it, favor dog food brands that are transparent about how they source their ingredients and what goes into each packet. Try, if possible, to avoid giving it scraps from your plates — food tailored to dogs will always be preferable.

And, if you want comprehensive information about the best dog foods out there, check out our friends at Dog Food Advisor — they have in-depth brand reviews that include ingredient analysis, so you know exactly what you’re feeding your pet.

Border Jack Temperament


If you’ve ever been around a Border Collie or a Jack Russell you’ll know roughly what to expect from a Border Jack. Loyal, brave and playful, this dog should be an utter pleasure to be in the company of. 

It’s so energetic and playful it shouldn’t be left alone with small children but it is fantastic with children because it loves to mess around and have fun. If you want to stop it being destructive as a result of being bored, make sure you’re giving it sufficient stimulation both mentally and physically. This is an intelligent dog who will be easy for you to train.

A little wary around new people, it can be socialized so that these traits are won over by more trusting and friendly characteristics. Don’t worry though — any wariness just stems from an attachment to you, its pet parent, and a desire to protect you.

Border Jack Activity Requirements


Your Border Jack dog may have huge amounts of energy to expend. This breed loves to run, jump, chase and play and can do so for hours. He or she will also love to run with his human family — so, if you’re a runner, take to your dog along!

For all of these high-energy needs, this is a dog that can live happily in an apartment, provided you're willing to provide him with ample exercise opportunities and play time activities. A Border Jack can live in any climate in both urban as well as rural environments, though extra protection may be required when outside in the colder climates.

This dog will also do quite well in a family home with or without a fenced yard, again, provided he’s exercised appropriately.

Now you’re all clued up on the particulars of the Border Jack, we recommend that you educate yourself on how much it will cost to look after one over the years that it will be in your care. 

Here, you can compare the best insurance providers to find the right quote for you and your dog. And, while you’re there, why not consider a wellness plan, which will cover the cost of your pup’s routine vet treatment and checks?

Border Jack Owner Experiences

Luna
1 Year
2 People
House
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Fetch
Walks
Agility
Absolutely amazing dog! Highly intelligent and loves working things out and wants to please. We were superstars at dog training, but it was all her. Luna is good with other people and other dogs (most of the time). She is great with our chickens, but will chase off any pigeons. High energy, strong (some Staffy in the mix) and not really affected by gravity. She is obsessed with sticks when walking, normally 6-9ft long ones! Luna is affectionate with my wife, but is definitely a one person dog and is constantly by my side. She is a brilliant companion out walking and always wants to be involved. Lots of energy, but also enjoys cuddles and relaxing in the warmest part of the house.
1 year, 1 month ago
Buttons
8 Years
6 People
House & Yard
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Run
Herding
Very affectionate. Has traits like a collie in moving livestock. Knowledge of different commands.
2 years ago
Tessa
2 Years
2 People
Apartment
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Shopping
Run
Hike
Agility training
Chase
High Five
Service Dog Training
Tag
I adopted Tessie when she was just over a year old. She came from a hoarding situation with over 600 dogs and we think she had very little contact with humans before she was rescued. Once in a shelter, after weeks of training, she was deemed unadoptable and was scheduled to be put down. Luckily, her foster mom took her in and we adopted from her. She was terrified when we first met her but I am a sucker for saving the damned. She is now mostly rehabilitated and doesn't mind humans but would prefer they stop reaching out towards her. Because of her breed, she is wicked smart, and after spending some time with my family's dogs she picked up on normal dog things like begging, "sit", drinking from the toilet, and belly rubs. She was learning so quickly and as I have RA and had developed severe panic attacks, we decided to train her to be my service dog. She now is public access trained and will jump up and lick my face during panic attacks, lay on me while I am anxious, and massage my back when I have muscle spasms. She has a kind of malleable energy where she can jump and run in circles for an hour, hike up the flatirons, or just lay in bed with me all day. Unfortunately, she is not the best with kids just yet. She isn't aggressive at all, but she does jump up and nip at their ankles to herd them. And if they run she wants to run too and play and bark; which I've found, does not look great to parents. She has never hurt anyone but she just doesn't understand they can't play like dogs. During her service dog time out and about, though, she doesn't seem too interested in them unless they come straight up to her or she is particularly unexercised. She is absolutely devoted to me, affectionate as can be, and hikes perfectly off leash. She is the best trained dog I personally know, and honestly, I don't put that much effort in. She is my best friend and I wouldn't ask for anyone different. 10/10 would recommend!
6 years, 3 months ago
snoopy
7 Years
2 People
House
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Everything
the most fun loving and affectionate dog we have the pleasure of owning after rescueing from being dumped at 6weeks old
6 years ago
Finnegan
6 Months
3 People
House & Yard
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Fetch
Frisbee
Run
Agility training
Obedience classes
Finn is an amazingly fun and intelligent dog. Each and every time we set out to teach him something new he catches on within a half hour or so. He’s quick to remember day to day what he has been taught. We have had him for three weeks and he has bonded tightly to us and is not apt to share our attention. We rescued him from an adult care home where he got little attention and training, and I suspect he was extremely bored and understimulated. He has a hard time with the cats, wanting to chase all the time so we always have him on a leash if they come onto the main floor. This may be a long process. He hasn’t spent time with kids yet but I suspect he will need to be leashed for the first number of visits. Great with other dogs, big and small, and can easily hold his own in the pack. Love him already!
5 years, 11 months ago
Brownie
5 Weeks
5 People
Apartment
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Running around
Biting a ball
My border Jack is about 5 weeks old, and is very cute. He is super playful, and when he plays, he sometimes bites my family members! He is very small, and is brown and white.
5 years, 9 months ago
Poppy
2 Years
4 People
House & Yard
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Running
Flyball
Poppy is a very lively girl who I got from a local dogs litter. Her extreme trainability (she learns things within about 20 mins) and utter friendliness make her an amazing companion. I must admit, she does take on some typical border collie traits, nipping at kids ankles and running laps around the backyard, but they mostly get drowned out by her extreme love of flyball. I highly recommend this sport to not just other border jacks, but all dogs as it is fun and stimulating for dog parent and dog alike.
5 years, 9 months ago
buster
6 Years
5 People
House
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
lots of walking chasing the ball
he's been a bit lethargic and wont even get out of his bed when you go outside which is unusual. when patting him either behind his head or his back legs mainly the right he yelps and then just constantly whines it takes him a while to get out of his bed. i cant see anything. any ideas what might be wrong.
5 years, 9 months ago
Luna
4 Years
1 People
House & Yard
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Walks,
Runs
Tug of war
Car rides
Fetch
I've had my Border Jack Luna for about 4 years now. She is so full of energy. Never a day goes by where I can just lay around. She keeps me on my toes constantly. She always makes me laugh.
5 years, 9 months ago
Pistol Pete
9 Months
2 People
Apartment
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Playing with others
Walks
Running
learning tricks
Car rides
hide and seek
So far he has a rather funny personality and will always snuggle up at night with you. He does tend to be at the heels a bit. He has to be the center of attention and is learning alot ot commands. He is a bit scared of things as we found him dumped and he has to warm up to other humans especially men.
5 years, 8 months ago
Gunner Jack
10 Months
4 People
House
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
We got Gunner Jack as a rescue dog from someone in town who was abusing him. That was 3 months ago. My husband is a Marine Vet and suffers from PTSD after 3 tours to Iraq. Gunner sits with him and lets him talk to him. Never leaves his side and loves on my husband. Gunner is a perfect fit for our family. He’s just very stubborn with training right now. He’s getting there though.
5 years, 6 months ago
Louie
16 Weeks
3 People
House & Yard
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
dog dates
Fetch
Running
Louie is very wary of strangers coming into our home but warms up quick when they give him treats. He attached to me pretty quickly so he follows me around everywhere! He loves playing with my husband and 5 year old but will follow me when I leave the room to do anything! We are finding out that he is SUPER fast and EXTREMELY trainable! We haven't had to work hard at all to teach him tricks! We love him so much and is definitely the best puppy we have had!
5 years, 5 months ago
Elle
10 Weeks
3 People
Apartment
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Fetch
Playing
Walking
The smartest and sweetest dog ive ever had!
5 years, 5 months ago
Jackie
18 Weeks
2 People
House
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Walk/Run Chuck-it ball
Still learning. Poddy training every 20-30 minutes. Daily exercise.
5 years, 3 months ago
Swazye
5 Months
2 People
House & Yard
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
He was 8 weeks old ,hit by a car and suffered multiple fractures- pelvis,hip and both back legs,After fostering him 6 weeks, We adopted him. It has been extremely cold here in Iowa so difficult to to get him to the dog park. He plays with our other dogs and does agility in the house
5 years, 2 months ago
Chloe
2 Years
1 People
Apartment
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Playdate
Run
Play
Fetch
Explore the city
Eating Snacks
I adopted Chloe when she was right at 2 years old. She was previously brought in to the shelter as a puppy with her brother, adopted and then the family returned ONLY her a year later. After a year in the shelter, she came to her forever home. She has literally been the perfect dog. Very loyal and loving, loads of energy and very quiet and happy. I'm able to leave her out of her kennel all day in my apartment without any issues. She loves other dogs, although she likes to take on the alpha role if she can. She also enjoys herding, chasing and playing at the dog park. She's all I could have asked for in a dog with such a big personality. 10/10 would recommend this breed!
4 years, 10 months ago
Loci
1 Year
4 People
House & Yard
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Walk
He's a very energetic and excitable pup, he loves children and babies, and is a little softy
4 years, 3 months ago
Ruby
6 Months
4 People
House & Yard
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
They are very playful and love attention Love to be in the move and outside
3 years, 6 months ago
Milo
4 Months
5 People
House & Yard
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Run
My border jack is the sweetest and most energetic I have ever known. They are a truly great family dog and is surprisingly good with cats! He is very smart and it's quite easy for him to pick up commands but he does need a lot of discipline. My border jack often bites and has even torn a few of my shirts! But with lots of love, discipline and exercise, they are the perfect dog.
3 years, 5 months ago
Book me a walkiee?
Pweeeze!
Sketch of smiling australian shepherd