Spring Hill is a census-designated place (CDP) in Hernando County, Florida, United States. The population was 98,621 at the 2010 census, up from 69,078 at the 2000 census. The American Community Survey estimated the population in 2016 to be 111,189. 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.
Spring Hill first appeared on Hernando County maps as early as 1856 along what is today Fort Dade Avenue just north of the community of Wiscon. The modern Spring Hill was founded in 1967 as a planned community, which was developed by the Deltona Corporation and the Mackle Brothers. The developers originally wanted to call the community Spring Lake and used that as the working name through the development process. They were forced to use a different name due to the name Spring Lake already being in use locally and chose Spring Hill.