Exeter is a borough in the Greater Pittston-Wilkes-Barre area of Luzerne County, Pennsylvania, United States, about 10 miles west of Scranton and a few miles north of Wilkes-Barre. It is located on the western bank of the Susquehanna River and has a total area of 5.0 square miles. As of 2020, Exeter had a population of 5,513.