Keystone College is a private college in northeastern Pennsylvania, United States. Although the college's official mailing address is La Plume, Pennsylvania in Lackawanna County, much of the campus is in Factoryville in Wyoming County. It was founded in 1868 and enrolls approximately 1,200 students in around 40 undergraduate and gradu…Keystone College is a private college in northeastern Pennsylvania, United States. Although the college's official mailing address is La Plume, Pennsylvania in Lackawanna County, much of the campus is in Factoryville in Wyoming County. It was founded in 1868 and enrolls approximately 1,200 students in around 40 undergraduate and graduate degree programs. In November 2024, following over a decade of enrollment and revenue decreases, the college's accreditor, by the Middle States Commission on Higher Education, planned to withdraw its accreditation, but the decision on an exact withdrawal date is now subject to an appeal.