Dogs That Live the Longest: 12 Breeds Compared

Ask around and you'll hear the same answer: Chihuahuas live forever. It's a nice idea, and plenty of Chihuahuas do make it deep into their teens. But when researchers looked at hundreds of thousands of real dogs, the breeds at the top of the longevity list weren't the ones most people guess.

This guide ranks the dogs that live the longest using two sources side by side: the breed-standard ranges from the American Kennel Club, and real-world medians from one of the largest dog lifespan studies ever done. Then we'll look at why these breeds last, and what any dog can borrow from them.

Which Dogs Live the Longest? — The Short Answer

Small and medium-small breeds with moderate, "normal" body shapes live the longest. The top of the list in real-world data is the Lancashire Heeler (15.4 years median), the Tibetan Spaniel (15.2), and the Bolognese (14.9), with Papillons, Border Terriers, Lhasa Apsos, Miniature Dachshunds, and Poodles close behind.

Those numbers come from a 2024 study in Scientific Reports led by Dr. Kirsten McMillan at the UK charity Dogs Trust. The team analyzed 584,734 dogs across 155 breeds and crossbreeds. Across all of them, the median life expectancy was 12.5 years.

If you want the broader picture of average lifespans by size, our guide on how long dogs live covers that. This article zooms in on the individual breeds that consistently outlast the rest.

The Longest-Living Dog Breeds, Ranked

Here's how 12 long-lived breeds compare. The first column is the lifespan range the AKC lists on each breed page. The second is the median age at death found in the UK study, using the Dogs Trust breed table.

*AKC range for the Dachshund breed overall. **AKC range for the Toy Poodle; the UK study groups Poodles together. ***AKC range for the closely related Parson Russell Terrier.

A median is the midpoint, so half the dogs in each breed lived longer than that number. A Chihuahua with a median of 11.8 years still has a very real shot at 16.

The Surprise Leaders

The Lancashire Heeler is a small, sturdy herding dog from northwest England, and the AKC lists it at 12 to 15 years. The UK data suggests many beat that. The Tibetan Spaniel, a compact companion breed from Himalayan monasteries, came in almost level at 15.2 years.

Neither breed is common, which matters. Rare breeds have fewer dogs in the data, so their numbers carry more uncertainty than the figures for, say, Jack Russells, where the study tracked over 19,000 dogs.

The Reliable Small Terriers

Border Terriers, Jack Russells, and Yorkshire Terriers all cluster between 13 and 14-plus years. Terriers were bred as working dogs, and many lines kept a practical, athletic build. We dig into the whole group in our terrier lifespan guide, and Yorkie owners can find breed-specific tips in how long Yorkies live.

Lap Dogs With Long Ranges

The Shih Tzu, Lhasa Apso, and Toy Poodle all have wide AKC ranges that stretch into the high teens. The Lhasa Apso did especially well in the UK data at 14.0 years. The Shih Tzu, a flatter-faced breed, landed a little lower at 12.8. If you share your home with one, our breakdown of the average lifespan of a Shih Tzu goes deeper.

Why Small Dogs Outlive Big Ones

Across mammals, bigger species usually live longer. An elephant outlives a mouse. Dogs flip that rule: within the species, small breeds routinely outlive giant ones by years.

The leading explanation is growth rate. Giant breeds go from a one-pound puppy to over 100 pounds in about two years. That rapid growth appears to speed up cellular aging and raise cancer risk earlier in life, a theory the AKC explains here. You can read more about what this means for toy and small breeds in our guide to how long small dogs live.

The 2024 UK study put numbers on the size effect. According to the Liverpool John Moores University summary, large breeds had a 20% higher risk of a shorter lifespan than small breeds. The shortest-lived breed in the data, the Caucasian Shepherd, had a median of just 5.4 years.

Size Isn't Everything: Face Shape Matters Too

Here's where the Chihuahua twist comes in. Size alone would put Chihuahuas near the top, but they sit toward the bottom of our list. Researchers didn't pin down one cause, but body shape is part of the story.

The same study found that flat-faced (brachycephalic) dogs had a 40% higher risk of shorter lives than dogs with medium-length faces. The French Bulldog, a small breed, had a median of only 9.8 years. Flat faces are linked to breathing, heat, and eye problems that add up over a lifetime.

So the dogs that live the longest share two traits: they're small to medium, and they have moderate, functional builds. That's a pattern we also see among the healthiest dog breeds. The study also found females lived slightly longer than males, 12.7 years versus 12.4.

The Record Holder: Bluey, 29 Years and 5 Months

The oldest dog ever verified wasn't a toy breed at all. Bluey was an Australian Cattle Dog from Rochester, Victoria, who lived from 1910 to 1939, reaching 29 years and five months.

A Portuguese dog named Bobi briefly claimed the title in 2023, but Guinness World Records withdrew it after questions about the evidence. As ABC News reported, Bluey was reinstated in 2024.

Bluey is an outlier, not a target. The AKC lists the Australian Cattle Dog at 12 to 16 years. But Bluey is a good reminder that a working dog with a lean frame and a busy, outdoor life can go a very long way.

What This Means for Your Dog

If you're choosing a puppy and longevity is high on your list, a small or medium breed with a moderate face and build gives you the best odds. Look for breeders who health-test and can tell you how old the parents and grandparents lived to.

If you already have your dog, breed is just the starting line. Genetics set a range, and daily care decides where in that range your dog lands. A well-cared-for Pomeranian can easily outlive a neglected Lancashire Heeler.

Habits That Help Any Dog Live Longer

You can't change your dog's breed, but you can stack the odds in their favor.

1. Keep them lean. VCA Animal Hospitals notes that being even moderately overweight can cut a dog's life expectancy by nearly two years. You should be able to feel the ribs easily under a thin layer of fat.
2. Keep treats to 10% of daily calories. VCA recommends this cap, and it's one of the easiest wins.
3. Take dental care seriously. Small breeds in particular are prone to dental disease. Brushing a few times a week and regular vet cleanings help.
4. Move every day. Walks, sniffing time, and play keep joints, weight, and minds in shape. Match the intensity to your dog's age and build.
5. Go to the vet at least yearly. Twice a year once your dog is a senior. Catching problems early is how many long-lived dogs get their extra years.
6. Keep their brain busy. Training, puzzle feeders, and new walking routes give older dogs something to look forward to.

None of these is dramatic. The dogs that live the longest usually aren't doing anything special. Their people are just doing the basics, every day, for a long time.

Practical Takeaways

• The longest-living breeds in real-world data are the Lancashire Heeler (15.4 years), Tibetan Spaniel (15.2), and Bolognese (14.9).
• AKC ranges and real-world medians don't always agree. Chihuahuas have a 14–16 year AKC range but an 11.8 year UK median.
• Small size helps, but flat faces cut into that advantage.
• Bluey the Australian Cattle Dog holds the verified record at 29 years and five months.
• Lean weight, dental care, daily movement, and regular vet visits help every breed live closer to its best-case lifespan.