What's the most common breed of dog owned by pet owners in the USA? Also, what's the most common breed of cat owned in the USA?
Labrodor retriever and golden retrievers I don't know about cats though!
The most popular cat breed is Persian Catshttp://www.catster.com/cat-breeds/most-popular-cat-breeds
Most people I know have DSH cats. As for dogs, I think it depends on the region.