There are 369 HVAC Companies in Middlesex County, Massachusetts, serving a population of 1,582,857 people in an area of 818 square miles. There is 1 HVAC Companies per 4,289 people, and 1 HVAC Companies per 2 square miles.
In Massachusetts, Middlesex County is ranked 5th of 14 counties in HVAC Companies per capita, and 2nd of 14 counties in HVAC Companies per square mile.