Perks, Illinois  Perks is an unincorporated community in Pulaski County, Illinois, United States. Perks is northeast of Ullin. Perks has a post office with ZIP code 62973. Perks was originally known as Stringtown. The community has one grocery store and gas station, Caspers Store. Local attractions include the Cache River State Natural Area. Perks has fewer than 100 people, many of whom are farmers or longtime residents of the community. On July 3, 2012, the town was badly hit by a twister/tornado from two winds colliding in the Perks, Illinois area. None were injured or killed, but several houses were hit by large, falling trees, and one uninhabited house got completely hit by a falling tree. A barn was destroyed, and pieces went into a cornfield, also ruining a brand new truck.