Dunmore is a borough in Lackawanna County, Pennsylvania, adjoining Scranton. Scranton is the sixth-largest city in the Commonwealth of Pennsylvania. It is the county seat of Lackawanna County in Northeastern Pennsylvania’s Wyoming Valley and hosts a federal court building. With a population of 77,291, it is the largest city in the Scranton–Wilkes-Barre–Hazleton, PA Metropolitan Statistical Area, which has a population of about 570,000. Scranton is the geographic and cultural center of the Lackawanna River valley, and the largest of the former anthracite coal mining communities in a contiguous quilt-work that also includes Wilkes-Barre, Pittston, and Carbondale.