Nantucket / ˌ n æ n ˈ t ʌ k ɪ t / is an island about 30 miles (50 km) south from Cape Cod.Together with the small islands of Tuckernuck and Muskeget, it constitutes the Town and County of Nantucket, a combined county/town government that is part of the U.S. state of Massachusetts.It is the only such consolidated town-county in Massachusetts. As of the 2020 census, the …