There are 166 Fast Food Restaurants in Placer County, California, serving a population of 374,985 people in an area of 1,407 square miles. There is 1 Fast Food Restaurant per 2,258 people, and 1 Fast Food Restaurant per 8 square miles.
In California, Placer County is ranked 16th of 58 counties in Fast Food Restaurants per capita, and 16th of 58 counties in Fast Food Restaurants per square mile.