IQ Score Guide / 91
Is 91 a Good IQ Score?
What an IQ of 91 means, where it ranks, and what it tells you about cognitive ability.
What an IQ of 91 means
The middle 50% of the population scores here. Cognitively typical — not a limitation. Most of the world's productive work is done by people in this range, and raw score at this level has the least influence on life outcomes compared to effort, character, and opportunity.
Careers that commonly score in this range
Notable people reportedly in this range
All figures are estimates or reported by third-party sources — none are clinically verified.
Sylvester Stallone
Writer, director, and actor behind the Rocky and Rambo franchises — reportedly scored in the mid-80s during schooling and attended special education classes as a child. Teachers told him he had limited academic potential. He wrote the Rocky screenplay in three days.
Mike Tyson
Undisputed world heavyweight boxing champion — sports psychology assessments cited in biographical literature place his IQ at approximately 89. Tyson struggled with reading until tutored in juvenile detention, and went on to become one of the most tactically sophisticated boxers of his era.
Elvis Presley
The King of Rock and Roll — reportedly scored 93 on an IQ test at Humes High School in Memphis, a figure cited in Peter Guralnick's authorised biography and corroborated by other published biographical accounts.
Mick Jagger
Rolling Stones frontman — attended the London School of Economics on a full grant before leaving to pursue music. Biographers estimate his IQ at approximately 90–96 based on academic performance records and early standardised testing.
Recommended reading for this score range
Make It Stick: The Science of Successful Learning
Peter C. Brown
Evidence-based learning strategies that dramatically outperform re-reading and highlighting.
View on Amazon →
Moonwalking with Einstein
Joshua Foer
How a journalist became US Memory Champion in one year — and what that reveals about memory training.
View on Amazon →
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