There are 161 Fast Food Restaurants in Charleston County, South Carolina, serving a population of 387,847 people in an area of 916 square miles. There is 1 Fast Food Restaurant per 2,408 people, and 1 Fast Food Restaurant per 5 square miles.
In South Carolina, Charleston County is ranked 19th of 46 counties in Fast Food Restaurants per capita, and 5th of 46 counties in Fast Food Restaurants per square mile.