Average IQ in the United States of America
Based on the UniversalIQTest.com online dataset (Passed quality checks / All results)
The average IQ in the United States of America is 101.7 in our dataset of 3,143 test results. See the full distribution, confidence interval, and how the United States of America compares worldwide.
These are averages from self-selected participants in the UniversalIQTest.com online test (not population IQ).
Use N and Approx. interval when comparing; avoid causal conclusions.
The displayed group score converts the group’s average percentile rank in the selected dataset view to an IQ-style scale (100, standard deviation 15). It is not the arithmetic mean of individual IQ scores.
Intervals use an approximate spread estimated from the interquartile range and sample size. They are indicative uncertainty ranges around the transformed group score, not validated confidence intervals for a population mean.
See Methodology & limits.
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IQ distribution in the United States of America (p10-p90)
IQ breakdowns in the United States of America by age, gender, education, and study area
Average IQ in the United States of America by age group
| Age group | IQ-style score | Approx. interval | N |
|---|---|---|---|
| Young Adult (19-35) | 104.5 | 103.7–105.3 | 1,442 |
| Youth (12-18) | 100.5 | 99.5–101.5 | 750 |
| Adult (36-65) | 99.3 | 98.3–100.3 | 808 |
| Senior (66-100) | 94.2 | 91.6–96.8 | 143 |
Average IQ in the United States of America by gender
| Gender | IQ-style score | Approx. interval | N |
|---|---|---|---|
| Male | 103.1 | 102.4–103.8 | 1,847 |
| Female | 99.7 | 98.9–100.5 | 1,260 |
Average IQ in the United States of America by education level
| Education level | IQ-style score | Approx. interval | N |
|---|---|---|---|
| Primary or Secondary | 99.9 | 99–100.8 | 952 |
| Bachelor | 103.4 | 102.4–104.4 | 907 |
| Post Secondary | 99.9 | 98.5–101.3 | 454 |
| Master degree | 103.9 | 102.5–105.3 | 361 |
| Short-cycle tertiary | 100.9 | 99.4–102.4 | 337 |
| Doctorate | 107.2 | 104.1–110.3 | 82 |
Average IQ in the United States of America by study area
| Rank | Study area | IQ-style score | Approx. interval | N |
|---|---|---|---|---|
| 1 | Physics | 109.2 | 106.3–112.1 | 50 |
| 2 | Computer Science | 107.5 | 105.9–109.1 | 267 |
| 3 | Mathematics | 106.3 | 103.1–109.5 | 84 |
| 4 | Biology | 105.1 | 102.1–108.1 | 60 |
| 5 | Engineering and Technology | 104.3 | 102.3–106.3 | 276 |
| 6 | Chemistry | 104.2 | 101.6–106.8 | 37 |
| 7 | Earth Science | 103.5 | 98.2–108.8 | 21 |
| 8 | Law | 103 | 99.9–106.1 | 82 |
| 9 | Languages and Literature | 101.7 | 98.7–104.7 | 108 |
| 10 | Economics | 100.9 | 98.8–103 | 158 |
| 11 | Psychology | 100.9 | 98.3–103.5 | 80 |
| 12 | Visual Arts | 100.9 | 98.5–103.3 | 121 |
| 13 | History | 100.7 | 96.6–104.8 | 51 |
| 14 | Philosophy | 100.7 | 96.5–104.9 | 41 |
| 15 | Medicine and Health | 100.4 | 98–102.8 | 142 |
| 16 | No diploma | 100.2 | 99.3–101.1 | 1,105 |
| 17 | Theology | 99.6 | 95.4–103.8 | 20 |
| 18 | Business | 99.4 | 97.4–101.4 | 173 |
| 19 | Performing Arts | 99.2 | 96.2–102.2 | 66 |
| 20 | Political Science | 98.8 | 92.9–104.7 | 21 |
| 21 | Sociology | 97.9 | 92.9–102.9 | 31 |
| 22 | Social Work | 96.4 | 92.7–100.1 | 52 |
Average IQ in the United States of America: frequently asked questions
- What is the average IQ in the United States of America?
- Our dataset shows an average of 101.7 IQ-style points for the United States of America, based on 3,143 results (Approx. interval 101.2–102.2, median 102).
- How many people from the United States of America took the test?
- 7,964 results from the United States of America are included in our dataset, of which 3,143 pass our internal validation checks for timing, completion and consistency.
- Is this the same as the average IQ of the population?
- These are averages from self-selected participants in the UniversalIQTest.com online test (not population IQ).
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