Meet the Jackador, an Energetic Lab and Jack Russell Mix

A Jackador is what happens when you cross the friendliest retriever in America with one of the most tireless terriers ever bred. The result is a medium-sized, very smart, very busy dog that wants to be in the middle of everything.

In short, a Jackador is a Labrador Retriever and Jack Russell Terrier mix, usually about 20 to 45 lbs. It’s affectionate and fun, but it brings a lot of terrier with it: high energy, a strong prey drive, digging and a fair bit of barking. For an active owner who likes training, that’s a great package. For someone hoping for a mellow Lab in a smaller size, it can be a shock.

What is a Jackador?

The Jackador (also called a Jack-A-Lab, Jackrador or Labrador Jack) is a cross between a Labrador Retriever and a Jack Russell Terrier. It’s a designer mix, not a recognized breed, so there’s no breed standard. Some pups look like small, wiry Labs. Others look like oversized Jack Russells with a Lab’s head.

Here are the quick facts as I’d put them:

The mix estimates are mine, based on the parent breeds. Jack Russells vary a lot in leg length, so Jackadors do too.

Where the Jackador comes from

I couldn’t find any known founder of the Jackador, and I don’t think there is one. Like most Lab mixes, it became popular in the US and UK during the designer-dog boom of the last few decades, and plenty of accidental crosses surely happened on farms long before anyone gave it a name.

The parent breeds are what I’d look at to know how this dog will behave.

The Jack Russell Terrier was developed in southern England in the 1800s by Reverend John Russell, a hunting parson who wanted a small, tough, white terrier that could run with foxhounds and bolt foxes from their dens. White coats made the terriers easy to tell apart from the fox. In the US, the AKC recognizes two related breeds, the Parson Russell Terrier and the shorter-legged Russell Terrier, while the name “Jack Russell” is mostly used for the broader working type.

The Labrador Retriever’s story begins in Newfoundland, where its ancestors worked alongside fishermen, before British breeders refined it into a gun dog. Labs are cooperative and food driven, the qualities that made them the top choice for guide dog programs.

Put those together and you get a dog with a terrier’s drive and independence plus a retriever’s people-pleasing streak. Which side shows up more is a coin toss.

Size and appearance

I’d call Jackadors small to medium dogs with an athletic build. They often have a deep chest, a Lab-like head that’s a little narrower, and ears that either fold like a Jack Russell’s or hang like a Lab’s.

Here’s how the parents compare. I’ve used AKC figures for the Lab and the Parson Russell, the closest AKC match to a working Jack Russell:

A Jackador with a short-legged Russell parent will likely stay at the low end. Ask the breeder or rescue for the parents’ sizes if you can.

Coat and colors

Most Jackadors have a short, dense coat. It may lean toward the Lab’s double layer, or toward the Jack Russell’s smooth, broken or rough (wiry) coat.

Colors can follow the Lab’s classic colors (black, yellow or chocolate) or the Jack Russell’s mostly white coat with tan, black or brown markings. Plenty of Jackadors are solid black or yellow with a white chest blaze or white feet.

Either way, they’ll shed. I’d bet on it. Neither parent is low-shedding, and Jack Russells shed more than their size suggests. Expect hair year-round, with heavier spells in spring and fall.

Jackador temperament

In my view, most Jackadors are affectionate, playful, curious and bold. They want to be involved in whatever you’re doing. Many are very good with their own families and friendly with visitors.

But I won’t pretend it’s a small Lab. The terrier side brings real traits you have to plan for. Here’s how the parents compare on the things that matter most at home:

Prey drive is the one I’d take most seriously. Jack Russells were bred to chase and dig after small animals, and many will kill rodents without a second thought. A Jackador may chase cats, squirrels and chickens, and it may not come back when called once it’s locked on.

I’ve noticed terriers also tend to be less tolerant than Labs of rough handling and other dogs who push them around. Some Jack Russells don’t get along with dogs of the same sex. Early, positive socialization makes a big difference here.

If you’re comparing other terrier crosses, I’ve written a broader guide to the Lab Terrier mix, which covers several terrier breeds.

Exercise needs

A Jackador needs at least an hour, often closer to 90 minutes, of activity a day, and some of that should work the brain as well as the legs. This isn’t a dog that’s happy with a stroll around the block.

What exercise can look like at each age:

Good outlets for a Jackador:

• Fetch and retrieving games (the Lab side usually loves these)
• Flirt pole play, which lets the terrier chase safely
• Agility, flyball or barn hunt
• Long sniff walks on a long line
• Puzzle feeders and snuffle mats

Barn hunt is worth a mention. It’s a sport where dogs find rats safely protected in tubes hidden in hay bales, and many terrier mixes love it. A Jackador with a job like that is far easier to live with.

A tired dog is a better behaved dog with any breed. From my experience with high-drive retrievers, though, a bored dog with a strong nose will always find its own job. With a Jackador, that job is often digging under your fence.

Training a Jackador

Jackadors are smart and learn fast, but they don’t always see the point of doing what you ask. Lab-heavy dogs often train like Labs. Terrier-heavy ones can be stubborn, easily distracted and very clever at finding loopholes.

The training plan I’d follow, in this order:

1. Start socialization early, ideally from 8 weeks, with lots of calm, positive experiences.
2. Use reward-based training only. Terriers tend to shut down or push back with harsh corrections.
3. Keep sessions to 5 to 10 minutes, several times a day, and end on a win.
4. Teach recall on a long line, and don’t trust it near squirrels until it’s rock solid.
5. Add impulse control: “wait” at doors, “leave it” and a settle on a mat.
6. Teach a “quiet” cue early, because many Jackadors are vocal.
7. Give the brain work every day with tricks, scent games or a dog sport.

I think consistency matters more than technique. Everyone in the house should use the same words and rules.

Food rewards usually work well thanks to the Lab side. Toys and tug often work even better for the terrier side. I’d use whatever your dog will work hardest for, and count treats toward the day’s food.

Grooming and care

The coat’s easy, but it isn’t zero work. My grooming kit for a Jackador would be:

• A rubber curry brush or bristle brush for weekly brushing
• An undercoat rake or deshedding tool in spring and fall
• Nail clippers or a grinder, every 3 to 4 weeks
• Ear cleaner
• A dog toothbrush (small dogs often have more dental problems)

Brush once or twice a week, more in shedding season. If you’re shopping for one, my guide to the best brush for Labs works for this coat too. Wiry-coated Jackadors may need occasional hand-stripping or a trim. Bathe only when needed, since frequent baths dry out the skin.

Dental care’s easy to overlook, and I’d put it high on the list. Smaller breeds and mixes tend to get more dental disease than big dogs, so daily or near-daily brushing is worth building into the routine.

Jackador health

Mixed breeds can be healthy dogs, but they can also inherit problems from both sides, and I wouldn’t assume otherwise. These are the conditions I’d watch for in a Jackador:

A few notes on those. The ACVS explains patellar luxation as a kneecap that slips out of place, and it’s common in small breeds. Primary lens luxation is a genetic eye problem in Jack Russells and other terriers, and a DNA test is available for it.

Deafness is more common in dogs with lots of white in the coat, and the AKC has a good guide to deafness in dogs if you suspect it.

I’m not a vet, and this isn’t a complete list. A sudden red, painful eye is an emergency, because lens luxation can cause glaucoma and blindness quickly. Get to a vet the same day.

Ask any breeder for proof of testing: hips and elbows (OFA or PennHIP) and a PRA DNA test on the Lab, plus a PLL DNA test, a patella check and ideally a BAER hearing test on the Jack Russell.

Feeding a Jackador

I’d start with a complete and balanced food that meets AAFCO standards for your dog’s life stage. Look for the AAFCO nutritional adequacy statement on the bag. Brand names matter less than that statement and a portion size that keeps your dog lean.

How much you’ll feed depends on size, age and activity. A 25 lb Jackador and a 45 lb one need very different amounts, so start with the bag’s guide for your dog’s weight and adjust every few weeks by body condition. You should feel the ribs easily.

My feeding rules for an active mix like this:

• Measure every meal
• Count treats toward daily calories (keep them under about 10%)
• Feed more on heavy activity days, less on rest days
• Use a puzzle feeder for at least one meal
• Keep onions, garlic, grapes, raisins, xylitol and chocolate well out of reach

Labs are famously food obsessed, and many carry a gene variant linked to appetite. Buck taught me how quickly weight creeps on: around age six he started gaining on the same portions, and a lower-calorie, higher-protein food split into three smaller meals got him back to 78 lbs in about four months. If you’re choosing a food, my guide to the best dog food for Labradors covers what I look for. Check with your vet before a big diet change.

Is a Jackador right for you?

My honest take, in two lists.

A Jackador is a good fit if:

• You’re active and want a dog who’ll join you for runs and hikes
• Training and dog sports sound like fun, not a chore
• Your yard is securely fenced (and dig-proofed)
• A medium-sized dog suits your home better than a big Lab

Skip it if:

• There are cats, rabbits, guinea pigs or chickens at home
• You want a calm, low-energy dog
• Long days alone are part of the dog’s routine
• Barking would cause trouble with neighbors

Based on my research, many behavior problems in high-energy mixes like this come down to unmet exercise and mental needs, not a bad dog. That’s worth being honest with yourself about.

Finding a Jackador

Adoption first

Jackadors and other Lab terrier mixes turn up in shelters regularly. I’d always start with rescues, including Jack Russell and Lab rescue groups. An adult dog has a big advantage: you can see its size, energy and how it gets along with cats before you commit. Ask the rescue about its history and plan for a few weeks of settling in.

Choosing a breeder

If you buy a puppy, pick the breeder carefully. There’s no breed club for Jackadors, so you have to do the vetting yourself.

A good breeder will:

• Show health test results for both parents, not just a vet check
• Let you meet the mother, and ideally the father
• Tell you honestly about energy and prey drive
• Raise puppies in the house, around everyday sounds and people
• Ask about your home, schedule and other pets

I’d walk away from anyone with puppies always available, several mixes on offer, or no health testing to show.

If you’re curious about other small Lab crosses, my guide to the Labrador mixed with a Pomeranian is a very different kind of dog.

FAQ

My final word

If you love the Lab personality but want a smaller dog with more spark, a Jackador might be your dog. Just go in with your eyes open. Fence the yard, buy a flirt pole, and teach “quiet” before the neighbors teach you why it matters.