South Dakota and Iowa are home to some of the biggest populations of America's most popular breeds of horses.

According to Cowgirl Magazine of the more than 2.4 million quarter horses in the country, more than 140,000 reside in the Mount Rushmore and the Hawkeye States.

Get our free mobile app

So what distinguishes a quarter horse from other horses?

According to Wikipedia:

The American Quarter Horse, or Quarter Horse, is an American breed of horse that excels at sprinting short distances. Its name is derived from its ability to outrun other horse breeds in races of a quarter mile or less; some have been clocked at speeds up to 44 mph (70.8 km/h).

The development of the Quarter Horse traces to the 1600s. The American Quarter Horse is well known both as a racehorse and for its performance in rodeos, horse shows, and as a working ranch horse.

According to the latest numbers from the American Quarter Horse Association, Texas is home to 17 percent of the country's quarter horses.

South Dakota is seventh. Iowa is tenth.

TOP STATES FOR REGISTERED QUARTER HORSES

  1. Texas (414,808)
  2. Oklahoma (162,513)
  3. California (112,915)
  4. Missouri (94,852)
  5. Montana (86,978)
  6. Colorado (80,811)
  7. South Dakota (79,743)
  8. Nebraska (79,271)
  9. Kansas (71,906)
  10. Iowa (63,612)

Minnesota is 21st overall with 45,769 registered quarter horses.

LOOK: Here are the pets banned in each state

Because the regulation of exotic animals is left to states, some organizations, including The Humane Society of the United States, advocate for federal, standardized legislation that would ban owning large cats, bears, primates, and large poisonous snakes as pets.

Read on to see which pets are banned in your home state, as well as across the nation.

LOOK: Stunning animal photos from around the world

From grazing Tibetan antelope to migrating monarch butterflies, these 50 photos of wildlife around the world capture the staggering grace of the animal kingdom. The forthcoming gallery runs sequentially from air to land to water, and focuses on birds, land mammals, aquatic life, and insects as they work in pairs or groups, or sometimes all on their own.

LOOK: 30 fascinating facts about sleep in the animal kingdom

More From KSOO-AM / ESPN Sioux Falls