Jessup is a borough in Lackawanna County, Pennsylvania. Lackawanna County is included in the Scranton–Wilkes-Barre–Hazleton, PA Metropolitan Statistical Area (“Wyoming Valley”). It is the second largest County within the metropolitan area. It lies northwest of the Pocono Mountains. Lackawanna County is located approximately 40 miles from the New Jersey border and also located approximately 33 miles from upstate New York.