Barack Obama2009–2017
150Informal estimate · not Simonton 2C
EstimatePresident#44Born1961SourceInformal estimate
US presidents’ IQ estimates, highest to lowest
These are historiometric 2C estimates from Simonton 2006 Table 1 column II-C, not administered IQ tests. John Quincy Adams is 175. Sorted high to low by default. Deep link: ?sort=highest.
Obama, Biden, and Trump are outside that paper. Their informal estimates (150, 125, and 130) sit in a separate block so they are never mixed unlabeled into 2C order.
- 1John Quincy Adams1825–1829175Simonton 2006 2C · not a testHistorical estimate
- 2Thomas Jefferson1801–1809160Simonton 2006 2C · not a testHistorical estimate
- 3James Madison1809–1817160Simonton 2006 2C · not a testHistorical estimate
- 4John F. Kennedy1961–1963160Simonton 2006 2C · not a testHistorical estimate
- 5Bill Clinton1993–2001159Simonton 2006 2C · not a testHistorical estimate
- 6Jimmy Carter1977–1981157Simonton 2006 2C · not a testHistorical estimate
- 7Woodrow Wilson1913–1921155Simonton 2006 2C · not a testHistorical estimate
- 8John Adams1797–1801155Simonton 2006 2C · not a testHistorical estimate
- 9Theodore Roosevelt1901–1909153Simonton 2006 2C · not a testHistorical estimate
- 10James A. Garfield1881152Simonton 2006 2C · not a testHistorical estimate
- 11Chester A. Arthur1881–1885152Simonton 2006 2C · not a testHistorical estimate
- 12Franklin D. Roosevelt1933–1945151Simonton 2006 2C · not a testHistorical estimate
- 13Abraham Lincoln1861–1865150Simonton 2006 2C · not a testHistorical estimate
- 14Millard Fillmore1850–1853149Simonton 2006 2C · not a testHistorical estimate
- 15John Tyler1841–1845148Simonton 2006 2C · not a testHistorical estimate
- 16Franklin Pierce1853–1857147Simonton 2006 2C · not a testHistorical estimate
- 17William Henry Harrison1841146Simonton 2006 2C · not a testHistorical estimate
- 18Rutherford B. Hayes1877–1881146Simonton 2006 2C · not a testHistorical estimate
- 19Martin Van Buren1837–1841146Simonton 2006 2C · not a testHistorical estimate
- 20Benjamin Harrison1889–1893145Simonton 2006 2C · not a testHistorical estimate
- 21Dwight D. Eisenhower1953–1961145Simonton 2006 2C · not a testHistorical estimate
- 22Andrew Jackson1829–1837145Simonton 2006 2C · not a testHistorical estimate
- 23Grover Cleveland1885–1889; 1893–1897144Simonton 2006 2C · not a testHistorical estimate
- 24James K. Polk1845–1849143Simonton 2006 2C · not a testHistorical estimate
- 25William McKinley1897–1901143Simonton 2006 2C · not a testHistorical estimate
- 26George H. W. Bush1989–1993143Simonton 2006 2C · not a testHistorical estimate
- 27Richard Nixon1969–1974143Simonton 2006 2C · not a testHistorical estimate
- 28Ronald Reagan1981–1989142Simonton 2006 2C · not a testHistorical estimate
- 29Calvin Coolidge1923–1929142Simonton 2006 2C · not a testHistorical estimate
- 30Herbert Hoover1929–1933142Simonton 2006 2C · not a testHistorical estimate
- 31Lyndon B. Johnson1963–1969141Simonton 2006 2C · not a testHistorical estimate
- 32Gerald Ford1974–1977140Simonton 2006 2C · not a testHistorical estimate
- 33George Washington1789–1797140Simonton 2006 2C · not a testHistorical estimate
- 34Warren G. Harding1921–1923140Simonton 2006 2C · not a testHistorical estimate
- 35Zachary Taylor1849–1850140Simonton 2006 2C · not a testHistorical estimate
- 36Andrew Johnson1865–1869140Simonton 2006 2C · not a testHistorical estimate
- 37Harry S. Truman1945–1953140Simonton 2006 2C · not a testHistorical estimate
- 38James Buchanan1857–1861140Simonton 2006 2C · not a testHistorical estimate
- 39William Howard Taft1909–1913140Simonton 2006 2C · not a testHistorical estimate
- 40James Monroe1817–1825139Simonton 2006 2C · not a testHistorical estimate
- 41George W. Bush2001–2009139Simonton 2006 2C · not a testHistorical estimate
- 42Ulysses S. Grant1869–1877130Simonton 2006 2C · not a testHistorical estimate
Not in Simonton 2006
Obama, Biden, and Trump took office after the 2006 paper. Their integers are informal estimates, not Table 1 II-C, and are not mixed into the 2C ranking above.