There are 55 Pollution Control Companies in Hawaii, serving a population of 1,421,658 people in an area of 6,421 square miles. There is 1 Pollution Control Company per 25,848 people, and 1 Pollution Control Company per 116 square miles.
The state of Hawaii is ranked 9th in Pollution Control Companies per capita, and 12th in Pollution Control Companies per square mile.