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 th…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.