Well there are over 5,000,000 Quarter horses worldwide with about 70 % of them being in the USA. So that would mean a little over 2,500,000 QH's in the US.
There are so many QH's that it is impossible to have an exact number. QH's are the most popular breed in America so there is no exact number
The calculation is wright but walkers are more common....
It depends if it is a pure breed quarter horse or a cross breed. Pure quarter horses usually range between browns and chestnuts but i recommend that u look up quarter horse color chart and that might...