Jimmy Carter IQ

James Earl Carter was born in Plains, Georgia, in 1924. He graduated from the US Naval Academy in 1946 and served in Admiral Rickover's nuclear submarine programme, studying reactor technology. He returned to run the family peanut business, became governor of Georgia and won the presidency in 1976. He brokered the Camp David Accords but struggled with inflation and the Iran hostage crisis. After office he worked for health, democracy and Habitat for Humanity, winning the 2002 Nobel Peace Prize. He died in December 2024, aged 100.

He was never tested. Simonton's 2006 study gives him 157 in version II-C, and the four versions average about 145, tied with Woodrow Wilson for the highest average of any 20th-century president. His technical training supports a high rating.

He was a naval officer trained in nuclear propulsion under Admiral Hyman Rickover and took graduate courses in reactor technology and nuclear physics. He left the Navy in 1953, before completing nuclear submarine service, to run the family farm.

His presidency was hurt by inflation, an energy crisis and the Iran hostage crisis. Afterwards the Carter Center nearly eradicated Guinea worm disease, monitored elections worldwide and won him the 2002 Nobel Peace Prize.

Carter reasoned like an engineer: master the details, solve the problem directly. At Camp David that patience produced a breakthrough over 13 days. In the White House the same instinct produced stories, which he disputed, that he even oversaw the tennis court schedule, a sign of how detail mastery can crowd out delegation.

What supports it

• Simonton (2006) gives Carter 157 in version II-C.
• He graduated from the US Naval Academy in 1946.
• He won the 2002 Nobel Peace Prize.

What it cannot prove

• Simonton built most presidential figures statistically from expert ratings, so neighbouring presidents cannot really be told apart.
• Technical training raises ratings of intellectual brilliance.
• Achievement reflects education, opportunity, persistence and collaboration as well as raw reasoning ability.

Jimmy Carter's IQ is represented here by a retrospective estimate of 157, not a verified test result. Jimmy Carter is best known for exceptional detail mastery. The useful question is what the surviving evidence shows, not whether a precise modern score can be recovered.

Detail-driven, devout and stubborn. An engineer who read every briefing and struggled to delegate.

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

Estimated IQ is 157. This is a rough estimate based on documented accomplishments and contemporary accounts, not a literal measurement.

He filed a report of a UFO sighting in Georgia in 1969.

Jimmy Carter's estimate of 157 falls in the genius level IQ range. Want your own number rather than Jimmy's? Take the free IQ test or the quick IQ test. See what an IQ of 157 means, place it on the IQ chart or check how rare it is with the IQ rarity calculator.