1. Which personality type is the rarest?

INFJ (Advocate) is often considered one of the rarest personality types, typically estimated at around 1–2% of the population. They are insightful, empathetic, and often driven by causes they believe in. Based on data collected from our own test results, INFJ also appears less frequently compared to many other types. However, personality distributions may vary depending on the test method, sample size, and region.

2. Which is the most common personality type?

ISFJ (Defender) is frequently reported as one of the most common types, valued for reliability and supportiveness, making up roughly 13% of the population. In our test data, ISFJ also appears frequently, especially among users who value stability, responsibility, and helping others. That said, commonality can differ across cultures and populations.

3. What is the best personality type?

There's no "best" personality type. Each of the 16 personality types has its own strengths, challenges, and ideal environments. The best type is the one that aligns with your values and goals.

16 Personality Types

Discover the 16 personality types, explore how they are grouped, and find out which personality type matches you best.

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What Are the 16 Personality Types?

The 16 personality types are organized into four personality groups: Analysts, Diplomats, Sentinels, and Explorers. Each type has a unique four-letter code and a defined set of strengths and traits.