There are 586 Dentists in St. Clair County, Illinois, serving a population of 264,433 people in an area of 658 square miles. There is 1 Dentist per 451 people, and 1 Dentist per 1 square miles.
In Illinois, St. Clair County is ranked 29th of 102 counties in Dentists per capita, and 13th of 102 counties in Dentists per square mile.