Average IQ in Bulgaria
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
97.9
95% CI: 96.8 to 99
Validated / All N
626 / 1,748
Validation rate: 35.8%
p10 / Median (p50) / p90
p10: 80.8
p50: 96.6
p90: 116.1
Avg time
36:57
Last updated
2026-03-25
View
Current view N: 626
IQ distribution in Bulgaria (p10-p90)
Bulgaria
85100115
IQ score
IQ breakdowns in Bulgaria by age, gender, education, and study area
Average IQ in Bulgaria by age group
Small sample: at least one group has N<50 (estimates are unstable).
Age group table
| Age group | Mean IQ | 95% CI | N |
|---|---|---|---|
| Young Adult (19-35) | 98.6 | 97 to 100.2 | 277 |
| Adult (36-65) | 97.8 | 96.2 to 99.4 | 271 |
| Senior (66-100) | 95.9 | 90.7 to 101.1 | 20 |
| Youth (12-18) | 95.8 | 92.5 to 99.1 | 58 |
Average IQ in Bulgaria by gender
Gender table
| Gender | Mean IQ | 95% CI | N |
|---|---|---|---|
| Male | 99.5 | 97.9 to 101.1 | 312 |
| Female | 96.3 | 95 to 97.6 | 314 |
Average IQ in Bulgaria 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 | 96.2 | 94.3 to 98.1 | 233 |
| Master degree | 101.9 | 99.8 to 104 | 145 |
| Bachelor | 98.9 | 96.5 to 101.3 | 129 |
| Post Secondary | 94.8 | 92.4 to 97.2 | 84 |
| Short-cycle tertiary | 94.3 | 87.9 to 100.7 | 24 |
| Doctorate | 102.1 | 93.9 to 110.3 | 11 |
Average IQ in Bulgaria by study area
Note: groups with N<20 are hidden by default.
Top study areas in Bulgaria (N >= 20)
| Rank | Study area | Mean IQ | 95% CI | N |
|---|---|---|---|---|
| 1 | Engineering and Technology | 101.5 | 98.5 to 104.5 | 80 |
| 2 | Mathematics | 100.8 | 94.6 to 107 | 22 |
| 3 | Medicine and Health | 100.4 | 96.2 to 104.6 | 28 |
| 4 | Computer Science | 99.7 | 95.2 to 104.2 | 22 |
| 5 | No diploma | 96.9 | 94.3 to 99.5 | 103 |
| 6 | Economics | 96.8 | 94.1 to 99.5 | 104 |
| 7 | Languages and Literature | 96.8 | 91.1 to 102.5 | 27 |
| 8 | Business | 95.9 | 91.8 to 100 | 34 |
| 9 | Social Work | 93.9 | 90.3 to 97.5 | 37 |
Data last updated: 2026-03-25 (latest test submission).
Page refreshed: 2026-03-26 03:54:42.850 UTC (site build time).