There are 121 Outdoor Activities in Middlesex County, Massachusetts, serving a population of 1,582,857 people in an area of 818 square miles. There is 1 Outdoor Activity Venue per 13,081 people, and 1 Outdoor Activity Venue per 6 square miles.
In Massachusetts, Middlesex County is ranked 9th of 14 counties in Outdoor Activities per capita, and 2nd of 14 counties in Outdoor Activities per square mile.