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
98.1
95% CI: 97 to 99.2
Validated / All N
639 / 1,779
Validation rate: 35.9%
p10 / Median (p50) / p90
p10: 80.9
p50: 96.7
p90: 116.3
Avg time
37:15
Last updated
2026-04-20
View
Current view N: 639
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) | 98.8 | 97.2 to 100.4 | 282 |
| Adult (36-65) | 97.8 | 96.3 to 99.3 | 275 |
| Senior (66-100) | 96.2 | 90.9 to 101.5 | 21 |
| Youth (12-18) | 96 | 92.6 to 99.4 | 61 |
Average IQ in Bulgaria by gender
Gender table
| Gender | Mean IQ | 95% CI | N |
|---|---|---|---|
| Male | 99.6 | 98 to 101.2 | 318 |
| Female | 96.4 | 95.1 to 97.7 | 321 |
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 | 96.4 | 94.5 to 98.3 | 238 |
| Master degree | 102 | 99.9 to 104.1 | 148 |
| Bachelor | 99.1 | 96.7 to 101.5 | 132 |
| Post Secondary | 94.6 | 92.2 to 97 | 85 |
| Short-cycle tertiary | 94.4 | 88.2 to 100.6 | 25 |
| Doctorate | 102 | 93.8 to 110.2 | 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 | 101.6 | 98.5 to 104.7 | 81 |
| 2 | Medicine and Health | 100.8 | 96.5 to 105.1 | 29 |
| 3 | Mathematics | 100.7 | 94.5 to 106.9 | 22 |
| 4 | Computer Science | 99.6 | 95.2 to 104 | 22 |
| 5 | Languages and Literature | 98.1 | 92.2 to 104 | 29 |
| 6 | No diploma | 97.1 | 94.5 to 99.7 | 108 |
| 7 | Economics | 96.6 | 93.9 to 99.3 | 104 |
| 8 | Business | 95.7 | 91.6 to 99.8 | 34 |
| 9 | Social Work | 93.8 | 90.2 to 97.4 | 37 |
Data last updated: 2026-04-20 (latest test submission).
Page refreshed: 2026-04-21 00:08:34.414 UTC (site build time).