One of the hardest parts of loving a dog is knowing that our time with them will never feel long enough.
While no one can predict exactly how long an individual dog will live, breed, body size, genetics, lifestyle, and overall health can all influence lifespan.
One pattern researchers and veterinarians have noticed is that smaller dogs generally live longer than larger dogs. Many small breeds routinely reach their mid-teens, and some dogs live well beyond the average for their breed.
Of course, choosing a dog should never be based on lifespan alone. Personality, activity level, grooming needs, and health considerations matter just as much.
Still, if you've ever wondered which breeds are known for staying around a little longer, these five are worth knowing.
1. Chihuahua
Typical Lifespan: 15–17 Years
Tiny body. Enormous personality.
Chihuahuas are among the smallest dog breeds in the world, but anyone who has lived with one knows they rarely seem aware of their size.
They're alert, confident, affectionate, and often form extremely close bonds with their favorite people.
They're also one of the longer-living dog breeds.
According to the American Kennel Club, Chihuahuas commonly have a lifespan of around 15 to 17 years, putting them near the top among small companion breeds.
Some Chihuahuas may live even longer with good genetics and proper care.
Their small size may work in their favor when it comes to longevity, but that doesn't mean they are free from health concerns.
Dental disease can be especially important in tiny breeds, so regular dental care shouldn't be treated as optional.
Maintaining a healthy weight matters too. On such a small frame, even a little extra weight can make a noticeable difference.
A Chihuahua may fit comfortably in your lap, but caring for one can be a very long-term commitment.
2. Chinese Crested
Typical Lifespan: 15–17 Years
The Chinese Crested is certainly one of the more distinctive-looking dogs you'll meet.
The breed comes in two varieties.
The Hairless variety typically has soft hair around the head, feet, and tail, while the Powderpuff variety has a full coat.
Despite the difference in appearance, both belong to the same breed.
Chinese Cresteds are usually affectionate, playful, and closely attached to their families.
They're also surprisingly long-lived.
The AKC lists their typical lifespan at roughly 15 to 17 years, similar to the Chihuahua.
Their unusual appearance sometimes makes people assume they're delicate, but these little dogs can be energetic and playful companions.
Hairless dogs do require special attention to their skin, however. They may be more vulnerable to sun exposure, dryness, and irritation than heavily coated breeds.
They also benefit from the same basics that help any dog age well: balanced nutrition, appropriate exercise, routine veterinary care, dental care, and plenty of mental stimulation.
3. Toy Poodle
Often Into the Mid-Teens
The Toy Poodle may look elegant, but underneath that carefully groomed coat is an athletic, intelligent little dog.
Poodles were originally developed as working dogs, and that intelligence didn't disappear when the breed was scaled down.
Toy Poodles are typically curious, quick learners, and highly engaged with the people around them.
They're also known for longevity.
Small Poodles frequently live well into their teens, and the wider Poodle family is generally considered relatively long-lived compared with many larger breeds. AKC lifespan guidance places Poodles broadly around 12–15 years, with small dogs often having an advantage in longevity.
Keeping a Toy Poodle mentally active can be just as important as keeping them physically active.
Training games, sniffing activities, puzzle toys, walks, and learning new tricks can help keep their minds busy.
Their coats also require regular maintenance.
That curly hair doesn't simply stop growing, so brushing and professional grooming usually become part of life with a Poodle.
Fortunately, for many families, that's a routine they'll be following for quite a few years.
4. Lhasa Apso
Typical Lifespan: 12–15 Years
The Lhasa Apso may look like a glamorous lap dog today, but the breed has a surprisingly serious history.
These small dogs originated in Tibet, where they served as indoor sentinels in palaces and Buddhist monasteries.
Their job was to notice when something unusual was happening and sound the alarm.
That history may help explain the breed's confident and independent personality.
Lhasa Apsos tend to be affectionate with their families while remaining somewhat reserved around strangers.
They're also known for living relatively long lives.
The AKC lists the Lhasa Apso at around 12 to 15 years, although some individuals live into their late teens and beyond.
One particularly famous Lhasa Apso was reported to have reached 29 years of age, although extraordinary individual records shouldn't be confused with a typical lifespan.
Their long coat requires regular grooming if kept at full length, although many family dogs wear a shorter trim that is easier to maintain.
They're small dogs with a surprisingly big sense of importance—and potentially many years to remind you of it.
5. Pomeranian
Typical Lifespan: 14–16 Years
Few dogs manage to pack this much fluff and confidence into such a small body.
Pomeranians are compact, alert, lively dogs known for their thick double coats and fox-like faces.
They often behave as though they are considerably larger than they actually are.
And like several other toy breeds, they're known for relatively long lifespans.
The AKC lists Pomeranians at approximately 14 to 16 years.
Despite their size, Pomeranians can be energetic and intelligent.
Regular walks, play sessions, and training help provide the physical and mental stimulation they need.
Weight management is especially important.
Small dogs require fewer calories than many people realize, so an extra bite here and an extra treat there can add up surprisingly quickly.
Good dental care is another important part of keeping small dogs healthy as they age.
With proper care, a Pomeranian may be running the household for well over a decade.
Why Do Small Dogs Usually Live Longer?
This is one of the more interesting mysteries in canine biology.
Across many animal species, larger animals often live longer than smaller ones.
Dogs appear to reverse that pattern.
Within the canine species, smaller breeds generally live longer than large and giant breeds.
For example, small dogs commonly live around 10 to 15 years, while many giant breeds average closer to 8 to 10 years.
Scientists don't have one simple explanation for the difference.
One theory is that large dogs age more quickly because they grow from tiny puppies into very large adults in an extremely short period of time.
That rapid growth may contribute to age-related disease developing earlier.
Genetics also matter.
Different breeds are predisposed to different diseases, and those inherited risks can have a major influence on average lifespan.
Breed Is Only Part of the Story
Seeing a lifespan of 15 or 17 years beside a breed's name doesn't mean every dog of that breed will reach that age.
These numbers are averages and estimates—not guarantees.
Two dogs of the same breed can have very different lifespans.
Genetics matter, but so do factors such as:
- Maintaining a healthy body weight
- Regular veterinary checkups
- Appropriate exercise
- Dental care
- Balanced nutrition
- Preventive healthcare
- A safe living environment
- Early attention to unusual health changes
Even luck plays a role.
Some health problems can't be completely prevented regardless of how attentive an owner is.
That's why lifespan numbers are better thought of as general expectations rather than countdown clocks.
Mixed-Breed Dogs Can Be Long-Lived Too
Purebred dogs don't have a monopoly on longevity.
Many mixed-breed dogs live well into their teens.
A dog's adult size, genetics, overall health, and lifestyle may tell you more about likely longevity than whether the dog belongs to a particular breed.
So if your dog isn't on a “longest-living breeds” list, don't read too much into it.
They're an individual, not a statistic.
The Goal Isn’t Just More Years—It’s Better Years
Most dog parents would happily ask for another five, ten, or twenty years with their dog.
Unfortunately, we don't get to choose the number.
What we can influence is how our dogs spend the years they have.
Regular walks.
Healthy meals.
Veterinary care.
Time to sniff everything on the sidewalk.
A comfortable place to sleep.
Games that make them think.
And plenty of time with the people they love.
Chihuahuas, Chinese Cresteds, Toy Poodles, Lhasa Apsos, and Pomeranians may have a reputation for longevity, but a long life means much more when those years are healthy and happy.
Because whether we get eight years or eighteen, it will probably still feel like it went by too fast.