There are 54 Pollution Control Companies in Montana, serving a population of 1,029,862 people in an area of 145,509 square miles. There is 1 Pollution Control Company per 19,071 people, and 1 Pollution Control Company per 2,694 square miles.
The state of Montana is ranked 5th in Pollution Control Companies per capita, and 50th in Pollution Control Companies per square mile.