There are 45 Pollution Control Companies in Iowa, serving a population of 3,118,102 people in an area of 55,842 square miles. There is 1 Pollution Control Company per 69,291 people, and 1 Pollution Control Company per 1,240 square miles.
The state of Iowa is ranked 51st in Pollution Control Companies per capita, and 42nd in Pollution Control Companies per square mile.