There are 249 Fast Food Restaurants in Lake County, Illinois, serving a population of 704,476 people in an area of 444 square miles. There is 1 Fast Food Restaurant per 2,829 people, and 1 Fast Food Restaurant per 1 square miles.
In Illinois, Lake County is ranked 40th of 102 counties in Fast Food Restaurants per capita, and 3rd of 102 counties in Fast Food Restaurants per square mile.