Ruskin is an unincorporated census-designated place in Hillsborough County, Florida, United States. As of the 2020 census, Ruskin had a population of 28,620. The area was part of the chiefdom of the Uzita at the time of the Hernando de Soto expedition in 1539. The community was founded August 7, 1908, on the shores of the Little Manatee River. It was developed by Dr. George McAnelly Miller, an attorney and professor at Ruskin College in Trenton, Missouri, and Addie Dickman Miller. It is named after the essayist and social critic John Ruskin. Miller established the short-lived Ruskin College. It was one of the Ruskin Colleges.