There are 329 Fast Food Restaurants in DeKalb County, Georgia, serving a population of 736,066 people in an area of 268 square miles. There is 1 Fast Food Restaurant per 2,237 people, and 1 Fast Food Restaurant per square mile.
In Georgia, DeKalb County is ranked 77th of 159 counties in Fast Food Restaurants per capita, and 1st of 159 counties in Fast Food Restaurants per square mile.