Number of Ballots Required to Nominate Presidential and Vice Presidential Candidates at National Nominating Conventions 1832 - 2024
Democratic Party
| Year | Location | Presidential Nominee | Ballots | V.P. Nominee | Ballots |
| 1832 | Baltimore | Andrew Jackson | 1 | Martin Van Buren | 1 |
| 1836 | Baltimore | Martin Van Buren | 1 | Richard Johnson | 1 |
| 1840 | Baltimore | Martin Van Buren | 1 | -- | by states |
| 1844 | Baltimore | James K. Polk | 9 | George M. Dallas | 2 |
| 1848 | Baltimore | Lewis Cass | 4 | William Butler | 2 |
| 1852 | Baltimore | Frankin Pierce | 49 | William R. King | 2 |
| 1856 | Cincinnati | James Buchanan | 17 | John C. Breckinridge | 2 |
| 1860 | Charleston & Baltimore |
Stephen Douglas & John Breckenridge |
57 | Herschel Johnson & Joseph Lane |
1 |
| 1864 | Chicago | George McClellan | 1 | George Pendleton | 1 |
| 1868 | New York | Horatio Seymour | 22 | Francis Blair, Jr. | 1 |
| 1872 | Baltimore | Horace Greeley | 1 | Benjamin Gratz Brown | 1 |
| 1876 | St. Louis | Samuel Tilden | 2 | Thomas Hendricks | 1 |
| 1880 | Cincinnati | Winfield S. Hancock | 2 | William English | 1 |
| 1884 | Chicago | Grover Cleveland | 2 | Thomas Hendricks | 1 |
| 1888 | St. Louis | Grover Cleveland | 1 | Allen Thurman | 1 |
| 1892 | Chicago | Grover Cleveland | 1 | Adlai E. Stevenson | 1 |
| 1896 | Chicago | William Jennings Bryan | 5 | Arthur Sewell | 5 |
| 1900 | Kansas City | William Jennings Bryan | 1 | Adlai E. Stevenson | 1 |
| 1904 | St. Louis | Alton B. Parker | 1 | Henry Davis | 1 |
| 1908 | Denver | William Jennings Bryan | 1 | John Kern | 1 |
| 1912 | Baltimore | Woodrow Wilson | 46 | Thomas Marshall | 1 |
| 1916 | St. Louis | Woodrow Wilson | 1 | Thomas Marshall | 1 |
| 1920 | San Francisco | James M. Cox | 44 | Franklin D. Roosevelt | 1 |
| 1924 | New York | John W. Davis | 103 | Charles W. Bryan | 1 |
| 1928 | Houston | Al Smith | 1 | Joseph Robinson | 1 |
| 1932 | Chicago | Franklin D. Roosevelt | 4 | John N. Garner | 1 |
| 1936 | Philadelphia | Franklin D. Roosevelt | 1 | John N. Garner | 1 |
| 1940 | Chicago | Franklin D. Roosevelt | 1 | Henry A. Wallace | 1 |
| 1944 | Chicago | Franklin D. Roosevelt | 1 | Harry S Truman | 3 |
| 1948 | Philadelphia | Harry S. Truman | 1 | Alben W. Barkley | 1 |
| 1952 | Chicago | Adlai Stevenson | 3 | John Sparkman | 1 |
| 1956 | Chicago | Adlai Stevenson | 1 | Estes Kefauver | 1 |
| 1960 | Los Angeles | John F. Kennedy | 1 | Lyndon B. Johnson | 1 |
| 1964 | Atlantic City | Lyndon B. Johnson | 1 | Hubert H. Humphrey | 1 |
| 1968 | Chicago | Hubert H. Humphrey | 1 | Edmund Muskie | 1 |
| 1972 | Miami Beach | George McGovern | 1 | Thomas Eagleton | 1 |
| 1976 | New York | Jimmy Carter | 1 | Walter Mondale | 1 |
| 1980 | New York | Jimmy Carter | 1 | Walter Mondale | 1 |
| 1984 | San Francisco | Walter F. Mondale | 1 | Geraldine Ferraro | 1 |
| 1988 | Atlanta | Michael Dukakis | 1 | Lloyd Bentsen | 1 |
| 1992 | New York | William J. Clinton | 1 | Albert Gore, Jr. | 1 |
| 1996 | Chicago | William J. Clinton | 1 | Albert Gore, Jr. | 1 |
| 2000 | Los Angeles | Albert Gore, Jr. | 1 | Joseph Lieberman | 1 |
| 2004 | Boston | John F. Kerry | 1 | John Edwards | 1 |
| 2008 | Denver | Barack Obama | 1 | Joseph R. Biden, Jr. | 1 |
| 2012 | Charlotte | Barack Obama | 1 | Joseph R. Biden, Jr. | 1 |
| 2016 | Philadelphia | Hillary Clinton | 1 | Tim Kaine | 1 |
| 2020 | Milwaukee | Joseph R. Biden, Jr. | 1 | Kamala Harris | 1 |
| 2024 | Chicago | Kamala Harris | 1 | Tim Walz | 1 |
Republican Party
| Year | Location | Presidential Nominee | Ballots | V.P. Nominee | Ballots |
| 1856 | Pittsburgh | John C. Fremont | 1 | William L. Dayton | 1 |
| 1860 | Chicago | Abraham Lincoln | 3 | Hannibal Hamlin | 2 |
| 1864 | Baltimore | Abraham Lincoln | 1 | Andrew Johnson | 1 |
| 1868 | Chicago | Ulysses S. Grant | 1 | Schuyler Colfax | 5 |
| 1872 | Philadelphia | Ulysses S. Grant | 1 | Henry Wilson | 1 |
| 1876 | Cincinnati | Rutherford B. Hayes | 7 | William Wheeler | 1 |
| 1880 | Chicago | James A. Garfield | 36 | Chester A. Arthur | 1 |
| 1884 | Chicago | James G. Blane | 4 | John A. Logan | 1 |
| 1888 | Chicago | Benjamin Harrison | 8 | Levi Morton | 1 |
| 1892 | Minneapolis | Benjamin Harrison | 1 | Whitelaw Reid | 1 |
| 1896 | St. Louis | William McKinley | 1 | Garret A. Hobart | 1 |
| 1900 | Philadelphia | William McKinley | 1 | Theodore Roosevelt | 1 |
| 1904 | Chicago | Theodore Roosevelt | 1 | Charles Fairbanks | 1 |
| 1908 | Chicago | William Howard Taft | 1 | James S. Sherman | 1 |
| 1912 | Chicago | William Howard Taft | 1 | James S. Sherman | 1 |
| 1916 | Chicago | Charles E. Hughes | 3 | Charles W. Fairbanks | 1 |
| 1920 | Chicago | Warren G. Harding | 10 | Calvin Coolidge | 1 |
| 1924 | Cleveland | Calvin Coolidge | 1 | Charles G. Dawes | 3 |
| 1928 | Kansas City | Herbert Hoover | 1 | Charles Curtis | 1 |
| 1932 | Chicago | Herbert Hoover | 1 | Charles Curtis | 1 |
| 1936 | Cleveland | Alfred Landon | 1 | Frank Knox | 1 |
| 1940 | Philadelphia | Wendell L. Willkie | 6 | Charles L. McNary | 1 |
| 1944 | Chicago | Thomas E. Dewey | 1 | John W. Bricker | 1 |
| 1948 | Philadelphia | Thomas E. Dewey | 3 | Earl Warren | 1 |
| 1952 | Chicago | Dwight D. Eisenhower | 1 | Richard Nixon | 1 |
| 1956 | San Francisco | Dwight D. Eisenhower | 1 | Richard Nixon | 1 |
| 1960 | Chicago | Richard Nixon | 1 | Henry Cabot Lodge | 1 |
| 1964 | San Francisco | Barry Goldwater | 1 | William E. Miller | 1 |
| 1968 | Miami Beach | Richard Nixon | 1 | Spiro Agnew | 1 |
| 1972 | Miami Beach | Richard Nixon | 1 | Spiro Agnew | 1 |
| 1976 | Kansas City | Gerald R. Ford | 1 | Robert Dole | 1 |
| 1980 | Detroit | Ronald Reagan | 1 | George Bush | 1 |
| 1984 | Dallas | Ronald Reagan | 1 | George Bush | 1 |
| 1988 | New Orleans | George Bush | 1 | Dan Quayle | 1 |
| 1992 | Houston | George Bush | 1 | Dan Quayle | 1 |
| 1996 | San Diego | Robert Dole | 1 | Jack Kemp | 1 |
| 2000 | Philadelphia | George W. Bush | 1 | Richard Cheney | 1 |
| 2004 | New York | George W. Bush | 1 | Richard Cheney | 1 |
| 2008 | St. Paul | John McCain | 1 | Sarah Palin | 1 |
| 2012 | Tampa | Mitt Romney | 1 | Paul Ryan | 1 |
| 2016 | Cleveland | Donald J. Trump | 1 | Mike Pence | 1 |
| 2020 | Charlotte* | Donald J. Trump | 1 | Mike Pence | 1 |
| 2024 | Milwaukee | Donald J. Trump | 1 | J.D. Vance | 1 |
| * The major convention events scheduled to take place in Charlotte were cancelled due to the COVID-19 pandemic. Most public events took place in Washington, D.C., Vice President Pence's nomination acceptance address took place at Fort McHenry in Baltimore, Maryland, and small meetings were held in Charlotte, North Carolina. |
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