Average IQ in the United States of America
Based on the UniversalIQTest.com online dataset (Validated / All results)
These are averages from self-selected participants in the UniversalIQTest.com online test (not population IQ).
Use N and 95% CI when comparing; avoid causal conclusions.
See Methodology & limits.
Mean IQ
101.9
95% CI: 101.2 to 102.6
Validated / All N
1,644 / 4,417
Validation rate: 37.2%
p10 / Median (p50) / p90
p10: 83.8
p50: 102.4
p90: 122.1
Avg time
47:06
Last updated
2026-05-07
View
Current view N: 1,644
IQ distribution in the United States of America (p10-p90)
United States of America
85100115
IQ score
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 table
| Age group | Mean IQ | 95% CI | N |
|---|---|---|---|
| Young Adult (19-35) | 104.6 | 103.5 to 105.7 | 755 |
| Youth (12-18) | 100.9 | 99.5 to 102.3 | 390 |
| Adult (36-65) | 99 | 97.7 to 100.3 | 449 |
| Senior (66-100) | 95.8 | 90.9 to 100.7 | 50 |
Average IQ in the United States of America by gender
Gender table
| Gender | Mean IQ | 95% CI | N |
|---|---|---|---|
| Male | 103.3 | 102.3 to 104.3 | 951 |
| Female | 100 | 98.9 to 101.1 | 693 |
Average IQ in the United States of America by education level
Small sample: at least one group has N<50 (estimates are unstable).
Education table (largest samples)
| Education level | Mean IQ | 95% CI | N |
|---|---|---|---|
| Primary or Secondary | 100 | 98.7 to 101.3 | 491 |
| Bachelor | 103.5 | 102.2 to 104.8 | 481 |
| Master degree | 104 | 102.2 to 105.8 | 229 |
| Post Secondary | 99.5 | 97.3 to 101.7 | 228 |
| Short-cycle tertiary | 101.4 | 99.2 to 103.6 | 173 |
| Doctorate | 109.3 | 105.3 to 113.3 | 42 |
Average IQ in the United States of America by study area
Note: groups with N<20 are hidden by default.
Top study areas in the United States of America (N >= 20)
| Rank | Study area | Mean IQ | 95% CI | N |
|---|---|---|---|---|
| 1 | Physics | 109.9 | 106.9 to 112.9 | 31 |
| 2 | Computer Science | 108.6 | 106.4 to 110.8 | 128 |
| 3 | Biology | 107.8 | 104.2 to 111.4 | 27 |
| 4 | Mathematics | 106.4 | 102.3 to 110.5 | 52 |
| 5 | Chemistry | 105 | 102.1 to 107.9 | 24 |
| 6 | Engineering and Technology | 104.4 | 101.7 to 107.1 | 147 |
| 7 | Law | 103.8 | 98.9 to 108.7 | 52 |
| 8 | Languages and Literature | 102.3 | 98.3 to 106.3 | 72 |
| 9 | Visual Arts | 102.2 | 99.2 to 105.2 | 74 |
| 10 | Psychology | 102 | 98.3 to 105.7 | 40 |
| 11 | Economics | 100.9 | 98 to 103.8 | 104 |
| 12 | History | 100.9 | 96.1 to 105.7 | 24 |
| 13 | Medicine and Health | 100.7 | 97 to 104.4 | 75 |
| 14 | Philosophy | 100.3 | 94.7 to 105.9 | 20 |
| 15 | No diploma | 100 | 98.8 to 101.2 | 559 |
| 16 | Business | 98.1 | 95.5 to 100.7 | 88 |
| 17 | Social Work | 97.9 | 92.1 to 103.7 | 25 |
| 18 | Performing Arts | 97.5 | 94.1 to 100.9 | 42 |
Data last updated: 2026-05-07 (latest test submission).
Page refreshed: 2026-05-10 10:47:35.482 UTC (site build time).