Which Dog Lives The Longest

Dog life expectancy charts by breed and weight. Learn about mixed breed lifespan and factors that affect your dog's longevity. The Australian cattle dog (also known as the blue heeler) has a long lifespan compared to other dogs their size, at 12 to 16 years.

The oldest dog that ever lived was an Australian cattle dog, Bluey, that lived 29 years until 1939. Not all pups live for the same amount of timethere are certain factors that play into the lifespan of dogs, including size, breed, and lifestyle. If youre looking for a fur baby that will stick around for a long time, weve rounded up 21 of the longest-living dog breeds.

This is a list of the oldest verified dogs in the world, listed by age, all of whom have attained the minimum age of 20. Aging in dogs depends on many factors, including breed, size and diet. Well, despite not being incredibly small, Australian Cattle Dogs have the longest lifespan.

The longest-living dog in the world was an Australian Cattle Dog named Bluey, who lived until 29. This... According to the Scientific Reports study, the dog breed with the longest average lifespan (15.4 years) was the Lancashire Heeler, a small dog with an elongated snout that became an officially recognized breed by the American Kennel Club (AKC) in 2024.

The longest-living dog breeds can live well into their teen years. Learn what dogs live the longest here, and which is best for your home. Which dogs live the longest? Researchers pored over half a million dogs' worth of data to find out.

Here are the results. The sassy little Chihuahua lives an average of 14 to 16 years, but a 21-year-old Chihuahua named TobyKeith holds the Guinness World Record for the oldest verified dog. Find out more about which dog breeds live the longest and how you can expand your dogs lifespan keeping them healthy with Bella+Duke.