There are 303 Fast Food Restaurants in St. Louis, Missouri, serving a population of 314,867 people in an area of 62 square miles. There is 1 Fast Food Restaurant per 1,039 people, and 1 Fast Food Restaurant per square mile.
In Missouri, St. Louis is ranked 6th of 115 counties in Fast Food Restaurants per capita, and 1st of 115 counties in Fast Food Restaurants per square mile.