Key West (Spanish Cayo Hueso) is an island and city in the Straits of Florida on the North American continent, at the southwesternmost end of the roadway through the Florida Keys in the state of Florida, United States. The island is about 4 miles (6.4 km) long and 1 mile (1.6 km) wide, with a total land mass of 4.2 square miles (11 km2).  Duval Street, its main street, is 1.1 miles (1.8 km) in length in its 14-block-long crossing from the Gulf of Mexico to the Straits of Florida and the Atlantic Ocean. The island is 3,370 acres (13.6 km2) in area.  Key West is about 95 miles (153 km) north of Cuba at their closest points.

The city is the county seat of Monroe County. The city boundaries include the island of Key West and all or part of several nearby islands. Key West is the southernmost city in the contiguous United States and the southern terminus of US Route 1,State Road A1A, the East Coast Greenway and, before 1935, the Florida East Coast Railway


Laid back, free-spirited, artistic, quirky, and scenic, Key West is one of the most unique places in the United States. Known for its live-and-let-live attitude, tropical climate, and seemingly continuous happy hour, this tiny Florida Keys island has been welcoming visitors seeking a vacation from the normal for two centuries.

Since its earliest days, individuals have come here to fish, write, carouse, and rejuvenate. From the famous, including Ernest Hemingway, John J Audubon, and Tennessee Williams – to infamous, Key West has always been a place where you can be yourself, find yourself, or re-invent yourself.

Key West is 129 miles (208 km) southwest of Miami by air, about 160 miles (260 km) by car, and 106 miles (171 km) north-northeast of Havana.  Key West is a port of call for many passenger cruise ships. The Key West International Airport provides airline service. Naval Air Station Key West is an important year round training site for naval aviation due to the tropical weather, which is also the reason Key West was chosen as the Winter White House of President Harry S. Truman. The central business district is located along Duval Street and includes much of the northwestern corner of the island. The official city motto is "One Human Family."