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
97.8
95% CI: 96.8 to 98.8
Validated / All N
673 / 1,856
Validation rate: 36.3%
p10 / Median (p50) / p90
p10: 80.3
p50: 96.3
p90: 116.1
Avg time
38:19
Last updated
2026-06-15
View
Current view N: 673
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) | 98.5 | 97 to 100 | 288 |
| Adult (36-65) | 97.3 | 95.8 to 98.8 | 293 |
| Youth (12-18) | 96.1 | 92.9 to 99.3 | 68 |
| Senior (66-100) | 95.9 | 91 to 100.8 | 24 |
Average IQ in Bulgaria by gender
Gender table
| Gender | Mean IQ | 95% CI | N |
|---|---|---|---|
| Male | 99.2 | 97.7 to 100.7 | 336 |
| Female | 96.1 | 94.9 to 97.3 | 337 |
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 | 94.2 to 97.8 | 254 |
| Master degree | 101.7 | 99.7 to 103.7 | 157 |
| Bachelor | 98.9 | 96.6 to 101.2 | 138 |
| Post Secondary | 94.5 | 92.1 to 96.9 | 87 |
| Short-cycle tertiary | 94.3 | 88.1 to 100.5 | 25 |
| Doctorate | 101.1 | 93.5 to 108.7 | 12 |
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 | 101.8 | 98.8 to 104.8 | 84 |
| 2 | Mathematics | 100.9 | 95 to 106.8 | 23 |
| 3 | Medicine and Health | 99.8 | 95.6 to 104 | 31 |
| 4 | Computer Science | 99.3 | 95.1 to 103.5 | 25 |
| 5 | Performing Arts | 98.1 | 87.6 to 108.6 | 20 |
| 6 | Languages and Literature | 97.5 | 91.5 to 103.5 | 30 |
| 7 | Visual Arts | 96.9 | 91.3 to 102.5 | 22 |
| 8 | Economics | 96.7 | 94.1 to 99.3 | 107 |
| 9 | No diploma | 96.6 | 94.1 to 99.1 | 117 |
| 10 | Business | 95.6 | 91.6 to 99.6 | 34 |
| 11 | Social Work | 93.7 | 90.2 to 97.2 | 37 |
Data last updated: 2026-06-15 (latest test submission).
Page refreshed: 2026-06-23 22:05:34.957 UTC (site build time).