Victory Margins for NYC Elections, Dating to 1897

New York City mayoral election margins, from largest to smallest, dating to 1897, when five-borough races began.

1985 Democrat Ed Koch defeats Liberal Carol Bellamy by 67.6528 %

1981 Democrat Ed Koch defeats Unity candidate Frank Barbaro by 61.3345 %
 
1957 Democrat –Liberal-Fusion Robert Wagner defeats Republican Robert Christenberry 41.4961 %
 
1973 Democrat Abe Beame (non-incumbent) defeats Republican John Marchi by 40.25 %
 
1921 Democrat John Hylan defeats Republican Henry Curran by 34.8723 %
 
1925 James Walker (non-incumbent) defeats John Hylan by 34.633 %
 
1929 Democrat James Walker defeats Republican Fiorello LaGuardia by 34.1265 %
 
1945 Democrat William O’Dwyer (non-incumbent) defeats Republican-Liberal-Fusion Jonah Goldstein 34.0629 %
 
1932 Democrat John O’Brien (non-incumbent) defeats Republican Lewis Pounds by 27.16 %
 
1917 Democrat John Hylan (non-incumbent) defeats John Purroy Mitchel by 22.905 %
 
1913 Fusion candidate John Purroy Mitchel (non-incumbent) defeats Democrat Edward McCall by 19.82 %
 
1937 Fusion-Progressive-Republican LaGuardia defeats Democrat Jeremiah Mahoney by 19.731 %
 
2005 Republican Michael Bloomberg defeats Democrat Fernando Ferrer by 19.371 %
 
1961 Democrat-Liberal Robert Wagner defeats Republican Louis Lefkowitz by 16.2805 %
 
1953 Democrat Robert Wagner (non-incumbent) defeats Republican Harold Riegelman by 16.2326 %
 
1897 Democrat Robert Van Wyck defeats Ciitzens Union opponent Seth Low by 15.5 %
 
1977 Democrat Ed Koch (non-incumbent) defeats Liberal Mario Cuomo by 14.19 %
 
1997 Republican Rudy Giuliani defeats Democrat Ruth Messinger by 12.2309 %
 
1909 Democrat William Gaynor (non-incumbent) defeats Fusion candidate Otto Bannard by 12.097 %
 
1933 Republican-Fusion LaGuardia defeats Recovery candidate Joseph McKee by 11.7652 %
 
1949 Democrat William O’Dwyer defeats Republican-Liberal-Fusion Newbold Morris by 11.658 %
 
1903 Democrat George McClellan (non-incumbent) defeats Seth Low by 10.5321 %
 
1950 Experience candidate Vincent Impellitteri defeats Democrat-Liberal Ferdinand Pecora by 8.3734 %
 
1969 Liberal-Independent John Lindsay defeats Democrat Mario Proccacino by 7.3574 %
 
1941 Fusion-United City-Republican LaGuardia defeats Democrat William O’Dwyer by 5.7563 %
 
1901 Fusion candidate Seth Low defeats Democrat Edward Shephard by 5.6 %
 
2009 Republican Bloomberg defeats Democrat Bill Thompson by 4.381 %
 
1965 Republican John Lindsay (non-incumbent) defeats Democrat Abe Beame by 3.8609 %
 
1993 Republican Rudy Giuliani (non-incumbent) defeats Democrat David Dinkins by 2.824 %
 
1989 Democrat David Dinkins (non-incumbent) defeats Republican Rudy Giuliani by 2.4781 %
 
2001 Republican Bloomberg (non-incumbent) defeats Democrat Mark Green by 2.397 %
 
1905 Democrat George McClellan defeats Independent William Hearst by .572 %
 
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