Key Colony Beach is an incorporated city with its own city government, a golf course, and several parks. Known as “The Gem of the Florida Keys”, Key Colony Beach features some of the most outstanding properties in all the Florida Keys. Most properties are either oceanfront or are on canals providing excellent access to the Atlantic Ocean and the Gulf of Mexico. During the winter months, the population swells to over 4,000 as part-time residents and visitors flock to this sunny city.