There are 106 Fast Food Restaurants in Marion County, Oregon, serving a population of 330,453 people in an area of 1,181 square miles. There is 1 Fast Food Restaurant per 3,117 people, and 1 Fast Food Restaurant per 11 square miles.
In Oregon, Marion County is ranked 27th of 36 counties in Fast Food Restaurants per capita, and 3rd of 36 counties in Fast Food Restaurants per square mile.