The northernmost of the Sarasota barrier islands, Longboat Key is located half in Manatee County and half in Sarasota County. The 11-mile island paradise is connected by bridge to Anna Maria Island to the north and Lido Key to the south. Home of world-class golf and tennis resorts, Longboat Key is a wonderland of manicured fairways and opulent high rise condominiums lining the Gulf of Mexico.