There are 412 Martial Arts Instruction Classes in Ohio, serving a population of 11,609,756 people in an area of 40,851 square miles. There is 1 Martial Arts Instruction Class per 28,179 people, and 1 Martial Arts Instruction Class per 99 square miles.
The state of Ohio is ranked 39th in Martial Arts Instruction Classes per capita, and 15th in Martial Arts Instruction Classes per square mile.