Nantucket /ˌnænˈtʌkɪt/ is an island about 30 miles (50 km) by ferry south from Cape Cod, in the U.S. state of Massachusetts. Together with the small islands of Tuckernuck and Muskeget, it constitutes the Town of Nantucket, and the conterminous Nantucket County. As of the 2010 census, the population was 10,172. Part of the town is designated the Nantucket CDP, or census-designated place. The region of Surfside on Nantucket is the southernmost settlement in Massachusetts.
The name "Nantucket" is adapted from similar Algonquian names for the island, perhaps meaning "faraway land or island" or "sandy, sterile soil tempting no one."
Nantucket is a tourist destination and summer colony. Due to tourists and seasonal residents, the population of the island increases to at least 50,000 during the summer months. The average sale price for a single-family home was $2.3 million in the first quarter of 2018.
The National Park Service cites Nantucket, designated a National Historic Landmark District in 1966, as being the "finest surviving architectural and environmental example of a late 18th- and early 19th-century New England seaport town."