There are 123 Periodontists in Contra Costa County, California, serving a population of 1,123,678 people in an area of 723 square miles. There is 1 Periodontist per 9,135 people, and 1 Periodontist per 5 square miles.
In California, Contra Costa County is ranked 9th of 58 counties in Periodontists per capita, and 5th of 58 counties in Periodontists per square mile.