Age at Inauguration

  • Donald J. Trump was the oldest president sworn-in at 70 years 220 days.
  • John F. Kennedy was the youngest elected president at 43 years 236 days.
  • After McKinley died, Theodore Roosevelt became the youngest president at 42 years 322 days.
  • William Henry Harrison became the oldest president at 68 years 23 days in 1841. He held that record for 140 years when, in 1981, Ronald Reagan was sworn in at 69 years 348 days.
  • On average presidents are sworn in at 55 years old.

Rank#PresidentAge at Inauguration
145Donald J. Trump70 years 220 days
240Ronald Reagan69 years 348 days
39William Henry Harrison68 years 23 days
415James Buchanan65 years 315 days
541George H. W. Bush64 years 222 days
612Zachary Taylor64 years 100 days
734Dwight D. Eisenhower62 years 98 days
87Andrew Jackson61 years 354 days
92John Adams61 years 125 days
1038Gerald R. Ford61 years 26 days
1133Harry S. Truman60 years 339 days
125James Monroe58 years 310 days
134James Madison57 years 353 days
143Thomas Jefferson57 years 325 days
156John Quincy Adams57 years 236 days
161George Washington57 years 68 days
1717Andrew Johnson56 years 107 days
1828Woodrow Wilson56 years 66 days
1937Richard M. Nixon56 years 11 days
2024Grover Cleveland55 years 351 days
2123Benjamin Harrison55 years 196 days
2229Warren G. Harding55 years 122 days
2336Lyndon B. Johnson55 years 87 days
2431Herbert Hoover54 years 206 days
2543George W. Bush54 years 198 days
2619Rutherford B. Hayes54 years 151 days
278Martin Van Buren54 years 89 days
2825William McKinley54 years 34 days
2939Jimmy Carter52 years 111 days
3016Abraham Lincoln52 years 20 days
3121Chester A. Arthur51 years 349 days
3227William H. Taft51 years 170 days
3332Franklin D. Roosevelt51 years 33 days
3430Calvin Coolidge51 years 29 days
3510John Tyler51 years 6 days
3613Millard Fillmore50 years 183 days
3711James K. Polk49 years 123 days
3820James A. Garfield49 years 105 days
3914Franklin Pierce48 years 101 days
4022Grover Cleveland47 years 351 days
4144Barack Obama47 years 169 days
4218Ulysses S. Grant46 years 311 days
4342Bill Clinton46 years 154 days
4435John F. Kennedy43 years 236 days
4526Theodore Roosevelt42 years 322 days

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