There are 276 HVAC Companies in Collin County, Texas, serving a population of 914,075 people in an area of 842 square miles. There is 1 HVAC Companies per 3,311 people, and 1 HVAC Companies per 3 square miles.
In Texas, Collin County is ranked 40th of 254 counties in HVAC Companies per capita, and 4th of 254 counties in HVAC Companies per square mile.