Who was the smartest President? The results may shock you!

Assessing the intelligence of U.S. presidents provides insight into their leadership qualities. While exact IQ scores remain unknown, historians and scholars estimate IQs based on achievements, writings, and historical data. Here’s a look at the ten most recent U.S. presidents and their estimated intelligence levels.

Joe Biden’s unknown estimate

Joe Biden, the 46th president since 2021, has no widely documented estimated IQ. Though known for decades of political experience, no formal assessments have been made regarding his intellectual ranking.

Donald Trump’s debated intelligence

The 45th president, who served from 2017 to 2021, has not released an official IQ score. Estimates vary widely, with supporters and critics offering conflicting assessments of his intellectual abilities. But while the other presidents on this list were tested in terms of their IQ, Donald Trump refused time and time to do this. According to his own claims, however, he has an IQ of 156. 

Barack Obama’s intellectual reputation

Serving from 2009 to 2017, Barack Obama is frequently praised for his intelligence, though specific IQ estimates are unavailable. His academic background, including his Harvard Law degree, is often cited as a testament to his intellectual capabilities.

George W. Bush’s underestimated IQ

The 43rd president (2001–2009) was often portrayed as less intelligent than his predecessors, but some studies estimate his IQ to be around 124, suggesting a solid intellectual foundation.

Bill Clinton’s high intelligence

Bill Clinton, who served from 1993 to 2001, is recognized as one of the more intellectually gifted presidents, with an estimated IQ of approximately 149. His academic achievements and policy expertise reinforce this assessment.

George H.W. Bush’s steady intellect

As the 41st president (1989–1993), George H.W. Bush had an estimated IQ of 130.1. His long career in public service and foreign policy expertise demonstrated his intellectual strengths.

Ronald Reagan’s underestimated intelligence

The 40th president (1981–1989) was sometimes criticized for his simplistic communication style, but his estimated IQ of 130 suggests he was more intellectually capable than some assumed.

Jimmy Carter’s remarkable IQ

Serving from 1977 to 1981, Jimmy Carter holds one of the highest estimated IQs at 156. His background as a nuclear engineer and deep policy understanding highlight his intellectual prowess.

Gerald Ford’s solid intellect

The 38th president (1974–1977) had an estimated IQ of 127. Though often regarded as unremarkable, Ford’s leadership and legal expertise suggest a capable and intelligent leader.

Richard Nixon’s strategic brilliance

The 37th president (1969–1974) had an estimated IQ of 155, making him one of the most intelligent recent presidents. His strategic thinking and deep understanding of governance, however, were overshadowed by the Watergate scandal.

Evaluating intelligence in leadership

While IQ estimates offer an interesting perspective, intelligence alone does not determine a president’s success. Leadership, decision-making, and the ability to connect with the public all play crucial roles in shaping a presidency.