There are 226 Fast Food Restaurants in Union County, New Jersey, serving a population of 557,320 people in an area of 103 square miles. There is 1 Fast Food Restaurant per 2,466 people, and 1 Fast Food Restaurant per square mile.
In New Jersey, Union County is ranked 15th of 21 counties in Fast Food Restaurants per capita, and 3rd of 21 counties in Fast Food Restaurants per square mile.