There are 244 Pollution Control Companies in Illinois, serving a population of 12,854,526 people in an area of 55,505 square miles. There is 1 Pollution Control Company per 52,682 people, and 1 Pollution Control Company per 227 square miles.
The state of Illinois is ranked 46th in Pollution Control Companies per capita, and 20th in Pollution Control Companies per square mile.