Boroughs of New York City form the new Nassau County. The borough of Staten Island, concurrent with Richmond County, was officially the borough of Richmond until the name was changed in 1975 to reflect its common appellation, while leaving the name of the county unchanged. There are throughout the five boroughs of New York City, many with a definable history and character to call their own. Since 1914, each of New York City's five boroughs has been coextensive with a county of New York State – unlike most U.S. cities, which lie within a single county or extend partially into another county, constitute a county
Boroughs of New York City technically speaking, state officials (since the counties are considered to be arms of the state government), rather than officials of the city government, they are not subject to the term limitations that govern other New York City officials such as the mayor, the New York City Public Advocate, members of the city council, or the borough presidents. Some civil court judges also are elected on a borough-wide basis, although they generally are eligible to serve throughout the city. The term sixth borough is used to describe any of a number of places that have been metaphorically called a part of