James Monroe – IQ 138.6

As a founding father and a president of the country, James Monroe oversaw numerous domestic issues that dominated American society. Despite having a low IQ compared to other leaders of the time, James is considered one of the most efficient presidents by political scientists and historians.

Monroe supported the Missouri Compromise, handled tense moments, and played an essential role in uniting the nations. That is quite an illustrious resume for a man who never went to college, and his IQ of 138.6 indeed does not reflect this – a remarkably impressive gentleman indeed.