George W. Bush (R) - IQ von 91

After four months of research, these learned men and women have determined the IQs of each president within a range of five percentage points. The IQs listed below are the norms for each president.

147 Franklin D. Roosevelt (D)
132 Harry Truman (D)
122 Dwight D. Eisenhower (R)
174 John F. Kennedy (D)
126 Lyndon B. Johnson (D)
155 Richard M. Nixon (R)
121 Gerald Ford (R)
175 James E. Carter (D)
105 Ronald Reagan (R)
099 George HW Bush (R)
182 William J. Clinton (D)
091 George W. Bush (R)

The non-partisan researchers who evaluated the twelve presidents determined that the six Republican presidents for the past 50 years had an average IQ of 115.5, with President Nixon having the highest IQ, at 155.

President G. W. Bush was rated the lowest of all the Republicans with an IQ of 91.

The six Democrat presidents had IQs with an average of 156, with President Clinton having the highest IQ, at 182. President Lyndon B. Johnson was rated the lowest of all the Democrats with an IQ of 126. The margin of error is plus or minus five percent.

This study was initiated on February 13, 2001 and completed on June 17, 2001.