The President of the United States is the head of state of the United States. Under the U.S. Constitution, the President is also the chief executive of the federal government and commander in chief of the armed forces.
| # | Name | Took Office | Left Office | Party | Vice President(s) |
| 1 | George Washington | 1789 | 1797 | no party | John Adams |
| 2 | John Adams | 1797 | 1801 | Federalist | Thomas Jefferson |
| 3 | Thomas Jefferson | 1801 | 1809 | Democratic-Republican | Aaron Burr and George Clinton |
| 4 | James Madison | 1809 | 1817 | Democratic-Republican | Elbridge Gerry |
| 5 | James Monroe | 1817 | 1825 | Democratic-Republican | Daniel D. Tompkins |
| 6 | John Quincy Adams | 1825 | 1829 | Democratic-Republican | John C. Calhoun |
| 7 | Andrew Jackson | 1829 | 1837 | Democrat | John C. Calhoun and Martin Van Buren |
| 8 | Martin Van Buren | 1837 | 1841 | Democrat | Richard Mentor Johnson |
| 9 | William Henry Harrison | 1841 | 1841 | Whig | John Tyler |
| 10 | John Tyler | 1841 | 1845 | Whig | none |
| 11 | James Knox Polk | 1845 | 1849 | Democrat | George M. Dallas |
| 12 | Zachary Taylor | 1849 | 1850 | Whig | Millard Fillmore |
| 13 | Millard Fillmore | 1850 | 1853 | Whig | none |
| 14 | Franklin Pierce | 1853 | 1857 | Democrat | William R. King then none |
| 15 | James Buchanan | 1857 | 1861 | Democrat | John C. Breckinridge |
| 16 | Abraham Lincoln | 1861 | 1865 | Republican | Hannibal Hamlin and Andrew Johnson |
| 17 | Andrew Johnson | 1865 | 1869 | Democrat | none |
| 18 | Ulysses Simpson Grant | 1869 | 1877 | Republican | Schuyler Colfax and Henry Wilson then none |
| 19 | Rutherford Birchard Hayes | 1877 | 1881 | Republican | William A. Wheeler |
| 20 | James Abram Garfield | 1881 | 1881 | Republican | Chester A. Arthur |
| 21 | Chester Alan Arthur | 1881 | 1885 | Republican | none |
| 22 | Stephen Grover Cleveland | 1885 | 1889 | Democrat | Thomas A. Hendricks then none |
| 23 | Benjamin Harrison | 1889 | 1893 | Republican | Levi P. Morton |
| 24 | Stephen Grover Cleveland | 1893 | 1897 | Democrat | Adlai E. Stevenson |
| 25 | William McKinley | 1897 | 1901 | Republican | Garret A. Hobart then none then Theodore Roosevelt |
| 26 | Theodore Roosevelt, Jr. | 1901 | 1909 | Republican | Charles W. Fairbanks |
| 27 | William Howard Taft | 1909 | 1913 | Republican | James S. Sherman then none |
| 28 | Thomas Woodrow Wilson | 1913 | 1921 | Democrat | Thomas R. Marshall |
| 29 | Warren Gamaliel Harding | 1921 | 1923 | Republican | Calvin Coolidge |
| 30 | John Calvin Coolidge, Jr. | 1923 | 1929 | Republican | none then Charles G. Dawes |
| 31 | Herbert Clark Hoover | 1929 | 1933 | Republican | Charles Curtis |
| 32 | Franklin Delano Roosevelt | 1933 | 1945 | Democrat | John Nance Garner and Henry A. Wallace and Harry S. Truman |
| 33 | Harry S. Truman | 1945 | 1953 | Democrat | none then Alben W. Barkley |
| 34 | Dwight David Eisenhower | 1953 | 1961 | Republican | Richard Nixon |
| 35 | John Fitzgerald Kennedy | 1961 | 1963 | Democrat | Lyndon Johnson |
| 36 | Lyndon Baines Johnson | 1963 | 1969 | Democrat | none then Hubert H. Humphrey |
| 37 | Richard Milhous Nixon | 1969 | 1974 | Republican | Spiro Agnew and GeraldFord |
| 38 | Gerald Rudolph Ford, Jr. | 1974 | 1977 | Republican | Nelson Rockefeller |
| 39 | James Earl "Jimmy" Carter, Jr. | 1977 | 1981 | Democrat | Walter F. Mondale |
| 40 | Ronald Wilson Reagan | 1981 | 1989 | Republican | George H. W. Bush |
| 41 | George Herbert Walker Bush | 1989 | 1993 | Republican | James Danforth Quayle |
| 42 | William Jefferson Clinton | 1993 | 2001 | Democrat | Al Gore |
| 43 | George Walker Bush | 2001 | - | Republican | Dick Cheney |