There are 164 Fast Food Restaurants in New Castle County, Delaware, serving a population of 555,036 people in an area of 427 square miles. There is 1 Fast Food Restaurant per 3,384 people, and 1 Fast Food Restaurant per 2 square miles.
In Delaware, New Castle County is ranked 3rd of 3 counties in Fast Food Restaurants per capita, and 1st of 3 counties in Fast Food Restaurants per square mile.