There are 66 Pollution Control Companies in New Hampshire, serving a population of 1,331,848 people in an area of 8,951 square miles. There is 1 Pollution Control Company per 20,179 people, and 1 Pollution Control Company per 135 square miles.
The state of New Hampshire is ranked 6th in Pollution Control Companies per capita, and 13th in Pollution Control Companies per square mile.