Spring Hill is a census-designated place (CDP) in Hernando County, Florida, United States. 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.

Spring Hill was formerly a large tract of endangered Longleaf Pine Ecosystem and Sand Pine Scrub with very high biodiversity, and a safe haven for many imperiled species, and most of it remained unchanged until the 1970’s with large scale deforestation.[citation needed] It 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. The plans for the community are identical to the community of Deltona. The Mackle Brothers sold many of the properties and land in the area through intense advertising. It has since become a sprawling semi-city in its own right, though it is an unincorporated area. The main entrance to the original development is marked by the Spring Hill waterfall on Spring Hill Drive and U.S. Route 19 (Commercial Way).

Spring Hill's proximity to Tampa, 40 miles (64 km) to the south, and the completion of the Suncoast Parkway in 2001 have made the community easily accessible to the Tampa-St. Petersburg area.

Spring Hill is located in southwestern Hernando County at 28°28′44″N 82°32′52″W / 28.47889°N 82.54778°W / 28.47889; -82.54778 (28.478929, & 82.547732). It is bordered to the west by Timber Pines; to the north by Weeki Wachee, North Weeki Wachee, High Point, Brookridge, and Wiscon; and to the east by South Brooksville, Garden Grove, and Masaryktown. To the south it is bordered by Shady Hills and Heritage Pines in Pasco County.

According to the United States Census Bureau, Spring Hill has a total area of 62.2 square miles (161.2 km2), of which 59.8 square miles (154.9 km2) are land and 2.4 square miles (6.3 km2), or 3.94%, are water.

The U.S. Postal Service recommends that "Spring Hill" be used as the mailing address for ZIP Code 34610 in neighboring Pasco County. The Spring Hill CDP does not extend into Pasco County; instead, this mailing area is partially covered by the Shady Hills and Quail Ridge CDPs.

As of the 2020 United States census, there were 113,568 people, 43,121 households, and 30,380 families residing in the CDP.

For the period 2013–17, the estimated median annual household income in the CDP was $45,468, and the median family income was $53,017. Male full-time workers had a median income of $39,478 versus $35,059 for females. The per capita income for the CDP was $22,349. About 10.7% of families and 14.9% of the total population were below the poverty line, including 22.6% of those under age 18 and 9.6% of those age 65 or over.

As of the 2010 United States census, there were 98,621 people, 38,333 households, and 27,272 families residing in the CDP.

At the 2010 census, the population density was 1,649 inhabitants per square mile (637/km2).

Of the 39,078 households in 2010, 29.8% had children under the age of 18 living with them, 53.6% were headed by married couples living together, 12.9% had a female householder with no husband present, and 28.9% were non-families. 23.1% of all households were made up of individuals, and 12.3% were someone living alone who was 65 years of age or older. The average household size was 2.49, and the average family size was 2.91.

In 2010, in the CDP, 21.6% of the population were under the age of 18, 7.2% were from 18 to 24, 21.9% were from 25 to 44, 27.1% were from 45 to 64, and 22.2% were 65 years of age or older. The median age was 44.3 years. For every 100 females there were 90.4 males. For every 100 females age 18 and over, there were 87.7 males.

For the period 2013–17, English spoken as a first language accounted for 85.7% of the population, while 14.3% spoke other languages as their mother tongue. The most significant were Spanish speakers who made up 10.0% of the population.

Spring Hill has many schools, both public and private, which provide primary and secondary education to local children. There are also several options for higher education that are easily accessible from the Spring Hill area.

Public schools in Spring Hill are part of the Hernando County School Board school system, which oversees all public schools in Hernando County. The main public schools that serve the Spring Hill area are:

High schools

Middle schools

K-8 schools

Elementary schools

In addition to the public schools in Spring Hill, there are several private schools:

Spring Hill is home to the 100,000-square-foot (9,300 m2) Spring Hill Campus of Pasco–Hernando State College. This was the fourth campus built out of the five now in existence.

Northwestern Christian University, an online program, has its headquarters in Spring Hill.

The Hernando County Library System operates several libraries in and around the Spring Hill area, such as the West Hernando Branch Library and the Spring Hill Branch Library, which serves as a replacement of the Little Red Schoolhouse Branch Library. The historic Little Red Schoolhouse Branch Library has since been converted into a bookstore, run by the Friends of the Library, whose proceeds benefit the library system.

The only hospital that operates in Spring Hill is TGH Spring Hill.

Nearby Weeki Wachee Springs is home to the famous live mermaid show and Florida's only spring-fed water park, Buccaneer Bay.

There are two print newspapers that serve the area: the Hernando Times (a publication of Tampa Bay Times), and the Hernando Sun.

Spring Hill belongs in the Tampa Bay Area media market, the 12th largest designated market area in the United States.

Public transit in Spring Hill is provided by Hernando County Transit (The Bus), which consists of four routes which serve Spring Hill and Brooksville, and which also provides a connection to the Pasco County Bus System (PCPT) via the Purple Route's terminus in Hudson. The Bus system operates six days a week since expanding to include Saturday service in October 2019.

The four current routes are:

Additionally, paratransit services are available via Trans-Hernando, which offers door-to-door services by advance reservation for the elderly, mentally challenged, and economic/transportation disadvantaged residents of Hernando County.

There are several county roads in Spring Hill that serve as major thoroughfares for traffic traveling around and passing through Spring Hill. Below is a list of the county roads that pertain to Spring Hill: