North Port is a city located in Sarasota County, Florida, United States. It is part of the North Port–Bradenton–Sarasota Metropolitan Statistical Area. It was originally developed by General Development Corporation 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 in 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. North Port is a municipality containing large-scale residential subdivisions along with an extensive network of streets. The municipality has annexed nearby locales, including the area known as Warm Mineral Springs, the location of a notable artesian spring, as well as its own significant residential subdivision.