The Mayor of the City of New York is elected in early November every four years and takes office at the beginning of the following year. The city, which elects the mayor as its chief executive, consists of the five boroughs (Manhattan, The Bronx, Brooklyn, Queens and Staten Island), which consolidated to form "Greater" New York on January 1, 1898.
The consolidated city's first mayor, Robert A. Van Wyck, was elected with other municipal officers in November 1897. Mayoral elections had previously been held since 1834 by the City of Brooklyn and the smaller, unconsolidated City of New York (Manhattan, later expanded into the Bronx).
The current mayor, now in his first term, is Bill de Blasio. He was elected on November 5, 2013, to a four-year term that began on January 1, 2014.
The vast bulk of this page's contents is statistical: the main results, citywide and by borough, of each of the 32 elections to the Mayoralty of the City of New York since Greater New York was consolidated from the five boroughs in 1897-1898.
For many years, but not all, there are also results for minor candidates and for the different parties nominating the same major candidate. (Because minor parties' votes are not uniformly available, totals and thus percentages can be slightly inconsistent, either between different elections or between individual boroughs and the entire city in the same election.)
There are brief comments about some of the elections, and separate articles have been written for those of 1917, 1977, 1997, 2001, 2005, and 2009. Different elections are compared in many of the individual notes, in two summary tables and in one specialized table.