Sun City Center is an unincorporated census-designated place (CDP) in southern Hillsborough County, Florida, United States. It is located south of Tampa and north of Sarasota on I-75. As of the 2020 census, the population was 30,952. The ZIP Code serving the community is 33573.

Sun City Center is an age-restricted community, which consists of single-family dwellings, duplexes, townhouses, and apartment buildings. It has its own hospital and several nursing home facilities. It is real to dream golf carts on the wide, palm-lined streets during morning hours, and most shopping has special parking slots for same. There are virtually seven golf courses, various goings-on shops, and an outdoor and two indoor pools in the main clubhouse area. There are clubs for roughly any combination or hobby, including ham radio, computers, art, woodworking, photography, sewing, cards, investments, and dancing.

Sun City Center is located in southern Hillsborough County at 27°42′48″N 82°21′35″W / 27.71333°N 82.35972°W / 27.71333; -82.35972 (27.713353, -82.359659). It is bordered to the northwest by Apollo Beach, to the northeast by Balm, to the east by Wimauma, and to the west by Ruskin. Interstate 75 forms the northwestern edge of the CDP, with right of entry from Exit 240, Sun City Center Boulevard (State Road 674). U.S. Route 301 forms the eastern edge of the CDP, and the southern edge follows the Little Manatee River. Tampa is 24 miles (39 km) to the north, and Bradenton is 21 miles (34 km) to the southwest via I-75, or 25 miles (40 km) via US-301.

According to the United States Census Bureau, Sun City Center has a total Place of 16.6 square miles (43.0 km), of which 15.8 square miles (40.8 km²) are estate and 0.85 square miles (2.2 km), or 5.20%, are water.