Brooklyn is a borough of New York City located at the westernmost end of Long Island in the State of New York. Formerly an independent city, t…Brooklyn is a borough of New York City located at the westernmost end of Long Island in the State of New York. Formerly an independent city, the borough is coextensive with Kings County, one of twelve original counties established under English / British rule of 1683 of the Kingdom of England / later Kingdom of Great Britain, after 1707), in the then colonial Province of New York, one of the subsequent Thirteen Colonies along the Atlantic Ocean / East Coast of British America, on the continent of North America.