There are 1186 Fast Food Restaurants in Orange County, California, serving a population of 3,155,816 people in an area of 791 square miles. There is 1 Fast Food Restaurant per 2,660 people, and 1 Fast Food Restaurant per square mile.
In California, Orange County is ranked 27th of 58 counties in Fast Food Restaurants per capita, and 2nd of 58 counties in Fast Food Restaurants per square mile.