the welsh springer spaniel is the most uncommon breed in the us
dingo
bulldog
There is not a specific dog breed that is smarter than any other dog breed in the world than there is in the USA, but the smartest dog breed are poodles.
On the dog show, the Beagle 'Aro' was the symbol to the most popular breed in 2007, as well in 2008.
In the US, Dachshunds have bitten the most, followed by Chihuahuas and Jack Russell Terriers.
The US.
We can't answer your question, because you do not give us a breed of dog. Please restate your question
From 1980 to 1986, the most popular dog breed in the United States was the Labrador Retriever. This breed gained widespread popularity due to its friendly temperament, intelligence, and versatility as a family pet and working dog. The Labrador's appeal has made it a consistent favorite among dog owners, solidifying its status during that period.
grey hound
500,000 to 1,000,000
Boston terrier
yorkie