Jack Russell Terrier

14-18 lbs
9-15"
England
Parson Russell Terrier, Parson Terrier, Russell Terrier, JRT, PRT


When you bring a Jack Russell Terrier into your life you’re bringing home a pup with a whole lot of personality. Hard-working, tenacious and full of energy, this is a great pet for a dog lover. But it’s not without its challenges. 

Here, we’ll explain all there is to know about this English terrier. You’ll discover all sorts of interesting facts, including:


Jack Russell breed overview

With a history of hunting foxes and other animals as varied as raccoons, this breed has a proud heritage of helping out its human friends. Small in frame but big in energy, the Jack Russell Terrier dog is a mischievous scamp who tends to get what he wants.

With a particularly decorated screen career, the Jack Russell Terrier will be familiar to many TV viewers. As the dog in the sitcom Frasier, Eddie — in reality, ‘played’ by father and son terriers Moose and Enzo — received more fan mail than the human actors. But you may be less familiar with the ins and outs of the breed; what the Jack Russell Terrier is like to live with; which health conditions it’s more vulnerable to; how to feed it properly.

Here, we’ll take you through all of that and more. By the end you may just want to invite one of these lovely little pups into your house. 


purpose Purpose
Ratter
history Date of Origin
Unknown
ancestry Ancestry
Terrier

Jack Russell Terrier Health

Average Size
Male Jack Russell Terrier size stats
Height: 9-15 inches Weight: 14-18 lbs
Female Jack Russell Terrier size stats
Height: 9-15 inches Weight: 14-18 lbs

Jack Russell Terrier Breed History


The man whose name lives on through the Jack Russell wasn’t called Jack but he was called Russell. An English vicar born in 1795, Reverend John Russell lived in the south of the country and loved hunting foxes. To hunt foxes, generally speaking you need dogs, and persistent dogs at that. Trump was the name of Russell’s first ever terrier, and Trump proved to be the foundation stud for the Jack Russell Terriers that followed in his wake. He was the animal of Russell’s dreams.

Jack Russells have always been hard-working terriers able to rat out all sorts of animals (including rats), not just the foxes for which they were originally designed. They are energetic, relentless and — when hunting prey — merciless! 

But, over the last three centuries they haven’t been strictly bred, so there are a wide range of Jack Russell Terriers and similar terriers. The belief that the Jack Russell is the exact same breed as the Parson Russell is erroneous. They are two very similar but distinct dogs. 

The Jack Russell Terrier Club of America (JRTCA) was founded in 1976.

Jack Russell Terrier Breed Appearance


Extremely strong and hardy for their size, Jack Russell Terriers are muscular, wiry, confident dogs. A Jack Russell’s weight tends to be around 16 lbs and they can stand as little as nine inches off the ground. 

Don’t let this diminutive stature fool you though; these are dogs that give as good as they get, and relish a tussle. 

Their coats come in three categories: rough, broken, or smooth. In color this breed is mainly white with markings that are black or tan, sometimes both. 

Similar breeds to the Jack Russell

Anyone passionate about the Jack Russell Terrier — and that could well include you — will very probably be interested to learn that there are various breeds that are similar to this one in various ways.

If you like the Jack Russell, therefore, you may also like:


Jack Russell Terrier Breed Maintenance


When it comes to exercise, you need to be aware that the Jack Russell Terrier needs a great deal. This makes perfect sense — it’s a hunting dog born and bred. This may mean that you aren’t necessarily the ideal pet parent if you live in a small city apartment. You may find that you are more than capable but Jack Russell Terriers need room to run and play, so, if you don’t live somewhere rural or in a sprawling house, make sure you’re giving your dog copious numbers of walks. 

As they can jump five feet into the air, they also need a backyard that has no weak links. Jack Russells are trained to dig, which can sometimes cause issues, especially if the dog gets bored.

Now, do Jack Russell Terriers shed? Yes is the short answer. Jack Russell Terriers are not hypoallergenic. The longer answer is that if the dog has shorter hair it may be likely to shed more than if it has longer hair. Whatever length or type of hair your Jack Russell has, brush it a few times a week so that you’re keeping a handle on the shedding. 

In order of frequency of monitoring your Jack Russell Terrier, it should be teeth, ears, nails. Ensure you’re brushing the dog’s teeth as often as possible — daily if you can — and cleaning its ears weekly. Like most dogs, nails can be left for a little longer and may only need to be trimmed once every few weeks. 


Jack Russell Terrier health risks


The typical Jack Russell Terrier lifespan is 13 to 16 years, with the breed known for having great health. With any luck, you’ll get all those 16 years and more with your furry friend, but no dog has an entirely illness-free life. In Jack Russell Terriers, the following conditions are a little more likely to occur than others, so try your best to keep an eye out for:



Patellar luxation

If you notice that your Jack Russell is limping, or perhaps refusing to exercise or experiencing swelling in the leg, it may have patellar luxation. This is a commonplace disorder that sees the dog’s kneecap dislocated from the knee joint. Normally hereditary, the condition can also be caused by trauma sustained to the knee instead.

You may not know right away if your young Jack Russell has patellar luxation because before around six weeks old the little one could just be interpreted as being a bit clumsy. At approximately this age, however, a vet will be able to diagnose it. 

Once a diagnosis has been confirmed (and graded from between 1-4 according to severity), your vet may prescribe medication like non-steroidal anti-inflammatory drugs but it’s more likely that they’ll recommend surgery (if they don’t want to try solutions like leg braces or bandages). The surgeon may want to insert pins into the tibia, shape the bone to add depth to the femur’s groove, or make fascial release incisions on the side of the affected knee. 

Cataracts

Cataracts are an extremely common occurrence in dogs. If your dog has cataracts it’s possible they may exhibit one of the following symptoms: their eye may be cloudy in appearance; its eye may reflect light abnormally; and there may be some abnormal coloration of the eye, often of the light blue or gray variety. 

This is a condition defined by the clouding of the lens in the eye. As a result of this clouding, the retina struggles to receive light and create an image. With cataracts will come some vision loss, which will be identifiable if you notice your little Jack Russell Terrier bumping into things, being extra-clumsy, or walking around more cautiously than normal. If left unattended to, cataracts can lead to problems like glaucoma (to which the Jack Russell Terrier is also prone) and even blindness. 

In order to treat cataracts, a vet will want to perform surgery, which in the case of this condition has a fantastic 90+% success rate. 


Legg-Calvé Perthes disease

You might want to contact your vet if you notice that your dog is limping, not putting weight on one leg, or has one leg that looks shorter than the other. It might have Legg-Calvé Perthes disease, an affliction that primarily affects dogs under the age of one. 

The causes of the condition remain something of a mystery but it’s a hip joint issue, specifically in the femur bone area of the hind leg. It’s a sad condition to affect a Jack Russell Terrier because it can severely impede a dog’s ability to move at all.

In their efforts to treat it, vets use X-rays as a crucial diagnostic tool. Generally limiting a dog’s activity tends to be prescribed but other options, for more severely affected dogs, nonsteroidal anti-inflammatory drugs are one possibility. A more drastic solution, of course, is surgery. A surgeon might go in and remove the femur bone and femur neck or, in worst-case scenarios, actually replace the entire hip.


Subaortic stenosis

When a dog’s heart has to work extra-hard, it’s often bad news for the animal because the cardiovascular system is put under greater stress. This is precisely what happens with subaortic stenosis, a relatively common condition in Jack Russell Terriers.

The left ventricle of the heart is just under the heart’s aortic valve. With subaortic stenosis, which tends to be present at birth in affected dogs, an obstruction forms in the left ventricle as a result of fibrous tissue developing. Less blood manages to be pumped out by the heart, which causes numerous problems for the dog. 

Before your Jack Russell Terrier is diagnosed with subaortic stenosis, look out for things like fainting, an aversion to exercise, and any struggles with breathing. 

Once a vet has diagnosed this condition, they have several options open to them. If the case is mild, it may be unnecessary to make any kind of intervention; your dog may need to simply take it easy for a while. If it’s more serious, the vet may prescribe medications like beta blockers. They may also consider surgery, which may involve cutting balloon angioplasty or inserting a soft catheter.


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

Experts recommend getting around 500 calories into your Jack Russell Terrier. It ought to go without saying that these calories should be in the form of high-quality, nutrient-rich food full of animal proteins that will keep your dog healthy and full of energy. Adults dogs tend to need about two meals a day but for Jack Russell Terrier puppies the number will be more like four.

Because this breed is prone to allergies, do keep in mind that these may be being caused by certain types of food. 

Do your research and avoid harmful ingredients and things like fillers and E numbers. 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.


Jack Russell Terrier Temperament


Be warned: the Jack Russell Terrier has a great deal of energy. Whether or not this is a welcome piece of news for you will of course depend on the type of person you are. But you should be aware going into any potential relationship with this scamp that the happiest Jack Russell Terriers will be the ones whose family are keen to keep up with the dog and offer it plenty of attention, love and exercise. 

This is a fiercely loyal breed that desperately wants to keep its pet parents happy, and you will always be rewarded for your efforts. But experts don’t recommend a Jack Russell Terrier for those who have never owned a dog before.

Thanks to its personality, you should always know where you stand with this dog. A Jack Russell’s temperament is such that it will be vocal about the various things that are irritating or upsetting it. If you’re not giving it sufficient exercise, for example, the Jack Russell Terrier will tell you, and will become destructive if ignored (they don’t have the nickname the Jack Russell Terrorist for no reason). Do not underestimate how easily this breed becomes bored. 

Because of its hunting DNA and its energy, it isn’t necessarily the greatest friend of other animals. As with most dogs, socialization is a great idea. And, fortunately, the Jack Russell Terrier is a wonderfully trainable dog, so you’re in luck. 

Now you’re all clued up on the particulars of the Jack Russell, we recommend that you educate yourself on how much it will cost to look after one over the (hopefully) 16 years you have one in your home. On average, although it’s a broad spectrum, the Jack Russell is likely to cost you approximately $500 to $1,000 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 furry 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?

Jack Russell Terrier Owner Experiences

Cosmo
2 Years
7 People
House
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Fetch
Easy, fun, great for large family
3 months, 2 weeks ago
Bob
6 Years
3 People
House & Yard
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Clever dog, very excited and super energetic. Very friendly with people but very territorial and not so friendly with other dogs when on a ride.
2 years, 5 months ago
Future
1 Year
2 People
House
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Running outside laying togerher bathing him
2 years, 6 months ago
3 Years
People
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Walking
The Jack Russell's that I have walked are not aggressive but not overly friendly. When I arrive they are excited to go on a walk but do not care for any affection when I arrive. They do like to lead the way on the walk and the males seem to mark their territory often. They do not really care to interact with other dogs or humans along the way, but they are sweet pups overall.
6 years, 10 months ago
6 Years
People
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Spa day
Fetch
Run
Frisbee
Hide & Seek
Each jack russel I’ve walked has given me grief. They’re very territorial of their home. I’ve had my shoes bitten multiplied times by these little guys. They just love to protect their homes. Once on a walk they’ve got a lot of energy and love to run it off. They’re excellent at fetch, chase and find.
6 years, 10 months ago
9 Years
People
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Playing
Jack Russel's have a ton of energy. They will bark until you greet them, and then they want to be your best friend. They are hyper and love going on walks. It is best to keep them away from other dogs, but they do well with people.
6 years, 10 months ago
11 Years
People
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Walking
I walked a jack Russell/Pug mix. He was very well-trained and great on a leash. Jack Russell’s tend to be smarter so it was clear that he had been trained well. He had energy like a jack Russell, but not too much. Very friendly with dogs.
6 years, 10 months ago
3 Years
People
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Dressing up
Tug-of-war
Run
I realized through this particular experience that Jack Russell's can be very territorial / affectinate with their one specific owner in mind. Even the husband who owns the app doesn't get as much niceness as his wife. He seemed to be very sweet and kind with the wife, but the husband and I on the other hand... Something else. I would go through 'airport security' and take off my shoes for him to smell. They need to make sure that your scent is present, and not a perfume of some sort. Otherwise when on the walk he is fine and in his own zone. And as well making sure he gets his "pee spots" back in his own scent.
6 years, 10 months ago
14 Years
People
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Explore the woods
Road trip
Hike
Chase
Look out the window
Dog Parks
I have had my JRT since she was 6 months old. She's very loyal and loving but she is quick to run if you leave a door open because she just loves to explore. She is friendly with all dogs and cats and people of all ages. She used to have a ton of energy and still does given her age. She is still completely house trained as well.
6 years, 10 months ago
3 Years
People
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
The dog was small and hyper. But all well he was a great dog to walk.
6 years, 10 months ago
1 Year
People
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
treats
Running
They have a lot of energy but in my experience, in comes in short spurts, almost cheetah like. They would want to run for a few minutes but then sit in the middle of the sidewalk and get scratches and treats. Usually not a fan of other dogs, but doesn't mind the random human who passes by.
6 years, 10 months ago
4 Years
People
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Fetch
Walk
Chew
Run
She was super sweet a little timid maybe because I was new but I really think because of my size. She loved going out for the walk and listened real well while we walked. She was super excited and a bit jumpy once we got back to the house. She was really happy all around and really kind. Even though she may have been afraid at first which can be dangerous with the wrong dog she just kept her space.
6 years, 10 months ago
5 Years
People
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Fetch
Go to Park
Play
They are very excited and can occasionally be aggressive. For the most part they are sweet but some nip if they get overly excited or feel threatened in some way. Need a lot of running to release their energy. Mostly very sweet.
6 years, 10 months ago
4 Years
People
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Walking
Running
The Jack Russell Terrier I walk is my easiest walker. His owner requests a 60 minute walk every time because he realizes that his little guy has lots of energy to burn throughout the day. So I take him (let’s call the dog Max) out for a nice long walk. He has a retractable leash, which works very well for him as he waits for me before he crosses a street. We walk quickly and cover a lot of ground - usually walking 4 miles in an hour. As far as friendliness, he seemed to realize right away that I was there to walk him, and didn’t see me as a threat, but Max has NO interest in my attentions. One day, when we returned from our walk, Max rolled over to show his belly. I thought he wanted a belly rub. I was wrong. He growled but I missed it, and then he turned and gave me a little warning nip. After that I realized that Max, like most Jack Russells, was more interested in walking with me than in snuggling with me. He loves his owners, and that’s enough for him. If we pass another dog on our walk, Max will go fully aggressive. He will growl and attack - no matter that he is a quarter of their size! And fortunately, since he is so small it is no problem for me to keep him away from the other dog, and to keep the situation from escalating. Max also seems very intelligent. I think normally his walks aren’t for a full hour unless I’m walking him, so sometimes he will head back home. When I turn down a side street he will stop and look at me, confused, assuming maybe I’ve gotten lost. But despite his confusion, he will never stop walking for me. Unlike so many other breeds that I walk, Max just keeps going and going, like an Energizer Bunny, never really seeming to get very tired. Once we return to his home, he may sit with me on the couch for a bit, though he clearly still isn’t all that interested in snuggles. Sitting near me, he just seems to want to indicate that he’s ok with me being there, and to say “thank you” for our walk. I think a Jack Russell is a good idea for someone who wants a small dog (maybe for a small space) who has big-dog energy. A Jack Russell is a good exercise buddy who doesn’t take up too much room.
6 years, 10 months ago
1 Year
People
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Walking
Fetch
skateboarding
Tricks
Beach
Running
I love this breed! Probably another one of my top breeds of choice for dogs. Perfect mid size dog with all the loving, athleticism, energy, obedience, and quick learner to proper behavior. I can’t say how many times I’ve walked these dogs but out of all the walks I’ve never once had any difficulty or trouble with these breeds. They are super bouncy and love to move their legs. They are true sweethearts of a dog too! I’ve ran stairs with them, skateboarded, biked, played fetch, swim at the beach, and even got some soccer in. You put any type of a ball in front of them no matter the size, and they will and are bound to make fun happen with it. Just can’t say enough about this dog breed. They really are the definition of small things in big packages as they embody everything I want in a dog.
6 years, 10 months ago
1 Year
People
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Chase
running,
Jack Russell Terriers are very energetic dogs. They need their daily dose of physical activity. While a stroll around the neighborhood may be great for some but the Jack Russell need much more than that. They do better with long walks or runs at the park. While the JRT are incredibly smart they can also be incredibly stubborn. They will sit and wait until you follow their orders as much as you want them to follow yours. They are incredibly social and friendly so don't be afraid to let them greet a neighborhood pup as long as it seems safe. They make for great family dogs and they love children and will enjoy the energy that a child has. The key for a Jack Russell is exercise, socialization and consistency with training.
6 years, 10 months ago
2 Years
People
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Running
The Jack Russel I walked was very energetic and slightly suspicious of me at first. After I showed him the leash he was happy to go out. He pulled slightly, but for being a small dog, it is not hard to hold him back. The owner had a retractable leash, which I do not recommend, because of the weight he would put while pulling. I ran with him to give him a good exercise and get his energy levels down. I could tell he was smart and stubborn when he found a chicken bone scattered in the garden and wouldn't leave it by any command. I had to "trade" it for a treat to get it out of his mouth.
6 years, 10 months ago
7 Years
People
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
chasing squirrels
Playing fetch
I had a recurring walk with a sweet girl named Bailey. She was 7 years old but so full of energy and always so excited to see me! She loved to chase squirrels and chase leaves that blew in the wind. She also loved to play fetch and run around her house. I find this breed had energy for days and doesn’t let their age show. Very sweet and motivated dogs. Very trainable too, bailey would spin on her hind legs for treats. Lovable dogs!!
6 years, 10 months ago
10 Years
People
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Walk
My experience with a Jack Russell was with an older Jack Russell who had mammory growths, so she was not in the best of health. She was also somewhat overweight, so when we went walking, she set a fairly slow pace. She was not a yapper like most Jack Russells, but she would occasionally go outside and bark once or twice. She would howl whenever she thought that she was going to get treats.
6 years, 10 months ago
8 Years
People
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Walking, chasing balls, looking for squirrels
I've had Jack Russell Terriers for over 20 years. I love it when I get a walk with JRT's as I like to compare how they are to mine. They are bundles of energy, lovable, loyal, funny, smart, and fierce when they have prey in their vision. I've had both broken coat and smooth coat Jack Russells and find they smooth coat sheds more hair than the broken coat one. I love that they are very portable. We have traveled all over with ours. We rent homes so that we can take them with us rather than put them in a kennel or my girlfriends will watch them. But now with Wag, which offers boarding and sitting, I have no worries at all with someone taking care of mine if the need be. I walk mine a mile everyday to work out his energy. He'll take naps with you and watch TV with you. He does bark a the TV when there are animals or even the minnions on it! Just love the breed, they're fantastic little ones!
6 years, 10 months ago
2 Years
People
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Fetch
Scenting
High energy, but well trained, this lady was mostly satisfied with sniffing around the perimeter of a park. Very friendly toward other dogs, and was disappointed and stubborn when I would not let her join some off-leash dogs playing. Near the end of an hour-long walk I could tell she was getting over-stimulated and anxious.
6 years, 10 months ago
2 Years
People
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Run
They've always been super energetic and lap dogs too at times. The three that I've spent the most time with always had a quirk about them! One of them was so nice and friendly and excited to see you come through the door, but soon as you started to leave turned verocious haha and tried to bite your ankles. The other one would just invite herself to lay on your lap and you better not move. And in a group setting they were usually just marking their territory and chasing other dogs around while barking I didn't really see them playing with dogs.
6 years, 10 months ago
johgff
28 Years
1 People
Studio
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
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6 years, 1 month ago
Benjamin Pharoah Smith
11 Years
4 People
House & Yard
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
I have had my dog since a baby
4 years, 11 months ago
Jess
11 Months
4 People
House & Yard
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Playing
Walks
wrestling
Running
She barks at people but is very affectionate with known people and doesn't mind other pets. She requires constant 24/7 energy and attention.
4 years, 6 months ago
Rosie
3 Months
2 People
House
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Playing fetch
Cuddling
Learning new tricks
We got Rosie at 9 turning 10 weeks old, she’s now 15 weeks and we’re first time owners, it’s been tough but things are getting better! She’s a lovely dog, loves everyone and every dog, not aggressive, loves to play and sleeps in bed with me and warns me if she needs the toilet, we snuggle on the sofa every evening and we walk 2 times a day and do some training such as “leave it” or “stay” she’s a very fast learner and if is all round lovely. She has her puppy flaws but that’s not her fault! Amazing companion
4 years ago
Millie
2 Years
2 People
House & Yard
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Playing
Walking.
She is the most amazing thing ever, so funny sweety , brilliant with kids, will do anything for you.
3 years, 10 months ago
Rudy
4 Years
4 People
Apartment
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Playing
Sleeping
going on long walks
These kind of dogs are the perfect fit for anyone that wants motivation to start exercising. We have him for four years now and he is the most energetic creature in our house. He likes belly rubs and games. The only downside is his coat. We brush him almost everyday and he still has so much fur! We are used to it now but consider this before getting one. We get by this, with a swiffer haha!
3 years, 7 months ago
Zack
7 Years
4 People
House & Yard
Health
Grooming
Friendliness
Energy
Trainability
Pastimes
Food,walks,hugs, kisses, kill
3 years, 5 months ago
Book me a walkiee?
Pweeeze!
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