Types in Life

Rarity and Rankings

Which types are rarest by population and gender, and how the types rank on traits like friendliness.

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MBTI Types by Percentage of Population: Rarest to Most Common

All 16 MBTI types ranked by share of the US population, from INFJ at about 1.5% to ISFJ at 13.8%, plus where the numbers come from and their limits.

9 min read

Can your MBTI type change over time?

MBTI theory says your core type stays the same, but test results often shift. Learn why results change, what research says, and how to find your best-fit type.

6 min read

MBTI Types by Gender: Most Common and Rarest Types in Men and Women

ISFJ is the most common MBTI type for women and ISTJ for men. Compare all 16 types side by side and see why INTJ and INFJ are rare in different genders.

6 min read

MBTI Types Ranked by Trait: Friendliest, Most Sensitive, Most Open-Minded and Most Difficult

Which MBTI types are seen as the friendliest, most sensitive, most open-minded and most difficult? See the common rankings, the reasons and what research says.

6 min read

The Hottest Personality Types: Most Attractive MBTI Types

There's no scientific hottest MBTI type, but some get named again and again. See the most attractive and flirty types, and what research says draws people in.

5 min read

The Smartest MBTI Types: Is Any Personality Type More Intelligent?

No MBTI type is the smartest. Learn why INTJ and INTP get that reputation, what research says about type and IQ, and the strengths each type brings.

5 min read

Which MBTI type is the most quiet?

ISTP is most often named the quietest MBTI type, with INTP, ISTJ, INTJ and ISFP close behind. See why, and how quiet, shy and introverted differ.

5 min read

More in types in life

Compatibility Which Myers-Briggs types tend to match well or clash in romance and friendship. Careers Which personality types are drawn to fields like engineering and aviation.