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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
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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 groupMean IQ95% CIN
Young Adult (19-35)98.897.2 to 100.4282
Adult (36-65)97.896.3 to 99.3275
Senior (66-100)96.290.9 to 101.521
Youth (12-18)9692.6 to 99.461

Average IQ in Bulgaria by gender

Gender table
GenderMean IQ95% CIN
Male99.698 to 101.2318
Female96.495.1 to 97.7321

Average IQ in Bulgaria by education level

Small sample: at least one group has N<50 (estimates are unstable).
Education table (largest samples)
Education levelMean IQ95% CIN
Primary or Secondary96.494.5 to 98.3238
Master degree10299.9 to 104.1148
Bachelor99.196.7 to 101.5132
Post Secondary94.692.2 to 9785
Short-cycle tertiary94.488.2 to 100.625
Doctorate10293.8 to 110.211

Average IQ in Bulgaria by study area

Note: groups with N<20 are hidden by default.
Top study areas in Bulgaria (N >= 20)
RankStudy areaMean IQ95% CIN
1Engineering and Technology101.698.5 to 104.781
2Medicine and Health100.896.5 to 105.129
3Mathematics100.794.5 to 106.922
4Computer Science99.695.2 to 10422
5Languages and Literature98.192.2 to 10429
6No diploma97.194.5 to 99.7108
7Economics96.693.9 to 99.3104
8Business95.791.6 to 99.834
9Social Work93.890.2 to 97.437
Data last updated: 2026-04-20 (latest test submission).
Page refreshed: 2026-04-21 00:08:34.414 UTC (site build time).

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