Lanai City is a census-designated place (CDP) on the island of Lanai, in Maui County, Hawaii, United States. The population was 3,102 at the 2010 census. Because of the island of Lanai's small population, Lanai City functions as the island's main commerce and business area. Many of the island's restaurants and shops can be found in the town square that surrounds Dole Park and the only hospital on the island, Lanai Community Hospital, is also located close to the park.In April 2009, Lanai City was named one of the most endangered historic sites in the U.S. It is home to an intact plantation town, something not found on any of the other Hawaiian Islands, dating back to the early 1920s. This historic district is threatened by commercial development, which would involve the demolition of a number of historic buildings.Lanai City is served by Lanai Airport (LNY).Geography and climateLanai City is located at .According to the United States Census Bureau, the CDP has a total area of 17.9km2, all land.Lanai City experiences a tropical savanna climate with a mostly dry summer season. The average temperature in January is almost cold enough to qualify this climate as a warm form of a Mediterranean climate . An average monthly temperature of 64F is the lower limit for tropical climate classification.