Scranton is the sixth-largest city in the Commonwealth of Pennsylvania. It is the county seat and largest city of Lackawanna County in Northeastern Pennsylvania's Wyoming Valley and hosts a federal court building for the United States District Court for the Middle District of Pennsylvania. 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. The city is conventionally divided into 8 districts: North Scranton, Southside, Westside, the Hill Section, Central City, Minooka, East Mountain, and Green Ridge, though these areas do not have legal status.