IQ Score Guide / 121
Is 121 a Good IQ Score?
What an IQ of 121 means, where it ranks, and what it tells you about cognitive ability.
What an IQ of 121 means
You are in the top 9% cognitively. This is the range where elite university students cluster, and where complex differentiation in demanding professional fields — law, medicine, engineering, research — becomes clearly visible.
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.
Lyndon B. Johnson
36th US President — Southwest Texas State University graduate and skilled legislative strategist. Simonton's historiometric analysis estimates his IQ at approximately 120–126, placing him solidly in the high-average range.
Bill Clinton
42nd US President, Oxford Rhodes Scholar, and Yale Law School graduate — IQ estimates range from 120 to 137 across published sources. Independent analyses using his SAT score place him at approximately 120–130.
George W. Bush
43rd US President — Yale and Harvard Business School graduate. Analysis of his 1206 SAT score (1964 scale) using the Frey-Detterman correlation estimates his IQ at approximately 120–125.
Oprah Winfrey
Media executive, actress, and philanthropist — Tennessee State University graduate and one of the most successful self-made entrepreneurs in US history. Published profiles estimate her IQ at approximately 115–120, with particular strength in emotional and interpersonal intelligence.
Recommended reading for this score range
Thinking, Fast and Slow
Daniel Kahneman
How cognitive biases affect even high-IQ decision-makers — and the research-backed fixes.
View on Amazon →
Peak: Secrets from the New Science of Expertise
Anders Ericsson
The science of deliberate practice — how superior performers keep improving beyond raw ability.
View on Amazon →
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