Spring Hill is a census-designated place (CDP) in Hernando County, Florida, in the United States of America. The community is unincorporated. The population was 113,568 at the 2020 census, up from 98,621 at the 2010 census. Spring Hill belongs to Florida's Nature Coast region and is in the Tampa-St. Petersburg-Clearwater metro area. It is east of Hernando Beach, southwest of Brooksville, and north of Tampa.