George Washington IQ

Washington never took an IQ test. Catharine Cox's 1926 study gave him a corrected estimate of 140. Adjusted for the Flynn effect that falls to about 120, so LifeScore uses a range of 120 to 140, while noting that Cox found military fame barely tracked her ratings.

On Cox's 1926 figures, no: she rated Jefferson and Franklin at 160 and Washington at 140. But those numbers measure early academic signs. Washington's strengths were judgement, self-command and holding a fragile army and country together, which the Cox method was not built to capture.

The 140 is Catharine Cox's corrected estimate from her 1926 study of 301 eminent people born between 1450 and 1850. She rated each person from biographical records of what they could do as a child and young adult, then corrected for gaps in the record.

Cox's numbers sit on an old ratio-IQ scale. One secondary tabulation subtracts about 22 points for the Flynn effect, which puts George Washington near 120.

LifeScore lists 120+, and the working range of 120 to 140 spans both figures. None of them is a test result.

Washington was cautious in speech and deliberate in decisions. He gathered advice from sharper minds, including Hamilton and Jefferson, then weighed it. His greatest skill was knowing when not to act.

What supports it

• Cox's 1926 study gave Washington a corrected estimate of 140, about 120 after a Flynn-effect adjustment.
• With little formal schooling he qualified as a surveyor at 17.
• He held the Continental Army together for eight years and then gave up power twice, in 1783 and 1797.

What it cannot prove

• Cox found that military eminence did not track childhood IQ ratings, so his number may mislead.
• Records of his childhood are thin.
• Cox's scale runs higher than modern deviation IQ.

George Washington's IQ is represented here by a retrospective estimate of 120+, not a verified test result. George Washington is best known for exceptional judgement. The useful question is what the surviving evidence shows, not whether a precise modern score can be recovered.

Disciplined, reserved and self-controlled. Led by judgement and example more than brilliance.

The dominant archetype here is The Ruler. This archetype shapes decision patterns: what feels natural, what creates friction, and what blind spots tend to emerge.

Estimated IQ is 120+. This is a rough estimate based on documented accomplishments and contemporary accounts, not a literal measurement.

Washington's famous false teeth were not wood. They were made from materials including ivory and human teeth.

George Washington's estimate of 120+ falls in the superior IQ range. See what an IQ of 120 means, place it on the IQ chart or check how rare it is with the IQ rarity calculator.