North Port is a city located in Sarasota County, Florida, United States. The population was 74,793 at the 2020 US Census. It is part of the North Port–Bradenton–Sarasota Metropolitan Statistical Area. It was originally developed by General Development Corporation (GDC) as the northern Sarasota County portion of its Port Charlotte development, the other portion located in the adjacent Charlotte County. GDC dubbed the city, "North Port Charlotte", and it was incorporated under that name through a special act of the Florida Legislature on June 18, 1959. By referendum in 1974, the city's residents approved a change to its name as "North Port", dropping "Charlotte" from its name to proclaim the city as a separate identity. It is home to the Little Salt Spring, an archaeological and paleontological site owned by the University of Miami.