There are 339 Fitness & Training Services in Middlesex County, New Jersey, serving a population of 837,288 people in an area of 309 square miles. There is 1 Fitness & Training Service per 2,469 people, and 1 Fitness & Training Service per square mile.
In New Jersey, Middlesex County is ranked 14th of 21 counties in Fitness & Training Services per capita, and 5th of 21 counties in Fitness & Training Services per square mile.