There are 1029 Fitness & Training Services in Middlesex County, Massachusetts, serving a population of 1,582,857 people in an area of 818 square miles. There is 1 Fitness & Training Service per 1,538 people, and 1 Fitness & Training Service per square mile.
In Massachusetts, Middlesex County is ranked 5th of 14 counties in Fitness & Training Services per capita, and 3rd of 14 counties in Fitness & Training Services per square mile.