There are 801 Periodontists in Illinois, serving a population of 12,854,526 people in an area of 55,505 square miles. There is 1 Periodontist per 16,048 people, and 1 Periodontist per 69 square miles.
The state of Illinois is ranked 20th in Periodontists per capita, and 14th in Periodontists per square mile.