North Port is a city located in Sarasota County, Florida, United States. The population was 74,793 at the 2020 US Census, up from 57,357 at the 2010 US Census. It is a principal city in the North Port–Bradenton–Sarasota, Florida 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.