There are 105 Fast Food Restaurants in Clark County, Washington, serving a population of 457,474 people in an area of 629 square miles. There is 1 Fast Food Restaurant per 4,356 people, and 1 Fast Food Restaurant per 5 square miles.
In Washington, Clark County is ranked 36th of 39 counties in Fast Food Restaurants per capita, and 3rd of 39 counties in Fast Food Restaurants per square mile.