Longboat Key is a town in Manatee and Sarasota counties along the central west coast of the U.S. state of Florida, located on and coterminous with the barrier island of the same name. Longboat Key is south of Anna Maria Island, between Sarasota Bay and the Gulf of Mexico. It is almost equally divided between the Manatee and Sarasota counties. The town of Longboat Key was incorporated in 1955 and is part of the North Port-Bradenton-Sarasota, Florida Metropolitan Statistical Area. The town's population was 7,505 at the 2020 census, up from 6,888 at the 2010 census.

Manatee County is a county in the U.S. state of Florida. As of the 2020 US Census, the population was 399,710. Manatee County is part of the North Port-Bradenton-Sarasota, Florida Metropolitan Statistical Area. Its county seat and largest city is Bradenton. The county was created in 1855 and named for the Florida manatee, Florida's official marine mammal. Features of Manatee County include access to the southern part of the Tampa Bay estuary, the Sunshine Skyway Bridge, and the Manatee River.