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How rare is an IQ of 75?

An IQ of 75 is at the Borderline range level (Bottom ~9%). IQ follows a normal distribution with a mean of 100 and a standard deviation of 15, and an IQ of 75 sits as follows.

Deviation score

33.3

Top

95.22%

Rarity

1 in 1

z-score

-1.67

Position in the IQ distribution (mean 100, SD 15)

557085100115130145

Characteristics and tendencies of an IQ of 75

The following are general tendencies seen at this level; individual differences apply. IQ measures one aspect of thinking, such as fluid reasoning.

  • This is the Borderline range level. IQ measures only a small part of thinking, and strengths and weaknesses vary greatly between individuals.
  • Even on problem formats you find difficult, your score can change with practice and learning new strategies.

Relationship to Mensa

Mensa's admission criterion is "the top 2% (roughly IQ 130 or above)." An IQ of 75 does not reach this criterion. Actual membership requires taking an approved supervised test.

Note: Most celebrity IQ figures seen online are estimates from unreliable sources. This page does not publish individual IQ values that cannot be verified.

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Frequently asked questions

What percentile is an IQ of 75?
An IQ of 75 corresponds to roughly the top 95.22%, or about 1 in 1 people.
Is an IQ of 75 high? Is it impressive?
It is at the Borderline range level (Bottom ~9%), placing it in roughly the top 95.22%. That said, IQ measures only a small part of thinking and does not determine a person's worth or success.
Can you join Mensa with an IQ of 75?
Mensa's admission criterion is "the top 2% (roughly IQ 130 or above)." An IQ of 75 does not reach the threshold (IQ 130).
What is the deviation score for an IQ of 75?
Converting IQ (mean 100, SD 15) to a deviation score gives about 33.3.

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