5. Kentucky
Horse Population: 320,173
Horses per square mile: 8.0
Number of People/Horses: 12.9
Comparatively, the horse breeding industry in Kentucky that ranks 5th in our list of states that produce the most horses in America is rather new. The Kentucky horse breeding industry was not established until 1850. However, once everything started, Kentucky horse industry swiftly came into the spotlight. Thanks to the horse enthusiasts and master horse breeders of the state. We are at the half way mark of our list today, and we hope you are liking our article so far. From here on, things will get even crazier. Because, the top three states that crown our top three positions actually hosts the majority of entire horse population of America.