Last Updated on 11 June 2024
All 46 U.S. presidents sorted by their age when they took office
| Initial Age | President | Number | Term |
|---|---|---|---|
| 42 years, 322 days | Theodore Roosevelt | 26 | 1901-1909 |
| 43 years, 236 days | John F. Kennedy | 35 | 1961-1963 |
| 46 years, 154 days | Bill Clinton | 42 | 1993-2001 |
| 46 years, 311 days | Ulysses S. Grant | 18 | 1869-1877 |
| 47 years, 169 days | Barack Obama | 44 | 2009-2017 |
| 47 years, 351 days | Grover Cleveland | 22 | 1885-1889 |
| 48 years, 101 days | Franklin Pierce | 14 | 1853-1857 |
| 49 years, 105 days | James A. Garfield | 20 | 1881-1881 |
| 49 years, 122 days | James K. Polk | 11 | 1845-1849 |
| 50 years, 183 days | Millard Fillmore | 13 | 1850-1853 |
| 51 years, 170 days | William Howard Taft | 27 | 1909-1913 |
| 51 years, 29 days | Calvin Coolidge | 30 | 1923-1929 |
| 51 years, 33 days | Franklin D. Roosevelt | 32 | 1933-1945 |
| 51 years, 349 days | Chester A. Arthur | 21 | 1881-1885 |
| 51 years, 6 days | John Tyler | 10 | 1841-1845 |
| 52 years, 111 days | Jimmy Carter | 39 | 1977-1981 |
| 52 years, 20 days | Abraham Lincoln | 16 | 1861-1865 |
| 54 years, 151 days | Rutherford B. Hayes | 19 | 1877-1881 |
| 54 years, 198 days | George W. Bush | 43 | 2001-2009 |
| 54 years, 206 days | Herbert Hoover | 31 | 1929-1933 |
| 54 years, 34 days | William McKinley | 25 | 1897-1901 |
| 54 years, 89 days | Martin Van Buren | 8 | 1837-1841 |
| 55 years, 122 days | Warren G. Harding | 29 | 1921-1923 |
| 55 years, 196 days | Benjamin Harrison | 23 | 1889-1893 |
| 55 years, 351 days | Grover Cleveland | 24 | 1893-1897 |
| 55 years, 87 days | Lyndon B. Johnson | 36 | 1963-1969 |
| 56 years, 107 days | Andrew Johnson | 17 | 1865-1869 |
| 56 years, 11 days | Richard Nixon | 37 | 1969-1974 |
| 56 years, 66 days | Woodrow Wilson | 28 | 1913-1921 |
| 57 years, 236 days | John Quincy Adams | 6 | 1825-1829 |
| 57 years, 325 days | Thomas Jefferson | 3 | 1801-1809 |
| 57 years, 353 days | James Madison | 4 | 1809-1817 |
| 57 years, 67 days | George Washington | 1 | 1789-1797 |
| 58 years, 310 days | James Monroe | 5 | 1817-1825 |
| 60 years, 339 days | Harry S. Truman | 33 | 1945-1953 |
| 61 years, 125 days | John Adams | 2 | 1797-1801 |
| 61 years, 26 days | Gerald Ford | 38 | 1974-1977 |
| 61 years, 354 days | Andrew Jackson | 7 | 1829-1837 |
| 62 years, 98 days | Dwight D. Eisenhower | 34 | 1953-1961 |
| 64 years, 100 days | Zachary Taylor | 12 | 1849-1850 |
| 64 years, 222 days | George H. W. Bush | 41 | 1989-1993 |
| 65 years, 315 days | James Buchanan | 15 | 1857-1861 |
| 68 years, 23 days | William Henry Harrison | 9 | 1841-1841 |
| 69 years, 349 days | Ronald Reagan | 40 | 1981-1989 |
| 70 years, 220 days | Donald Trump | 45 | 2017-2021 |
| 78 years, 61 days | Joe Biden | 46 | 2021-present |
