7. Missouri
Horse Population: 281,255
Horses per square mile: 4.1
Number of People/Horses: 20.5
If you are familiar with Missouri, then you are probably already know about the Missouri Fox Trotter. This horse was developed in the rugged and mountainous region of Ozark hills during the 19th century from saddle horses. Back in the day, the settlers heavily relied upon these surefooted horses who could cover a huge stretch of rough ground with ease. Missouri is still very well-known for its elaborate horse production industry.
