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Average IQ in Bulgaria

Based on the UniversalIQTest.com online dataset (Passed quality checks / All results)

The average IQ in Bulgaria is 98 in our dataset of 737 test results. See the full distribution, confidence interval, and how Bulgaria compares worldwide.

These are averages from self-selected participants in the UniversalIQTest.com online test (not population IQ).

Use N and Approx. interval when comparing; avoid causal conclusions.

The displayed group score converts the group’s average percentile rank in the selected dataset view to an IQ-style scale (100, standard deviation 15). It is not the arithmetic mean of individual IQ scores.

Intervals use an approximate spread estimated from the interquartile range and sample size. They are indicative uncertainty ranges around the transformed group score, not validated confidence intervals for a population mean.

See Methodology & limits.

IQ-style score
98
Approx. interval: 97–99
Passed quality checks / All results (N)
737 / 2,026
Quality-check pass rate: 36.4%
p10 / Median (p50) / p90
p10: 80.5
p50: 96.4
p90: 116.2
Avg time
38:59
Last updated
2026-11-05
View
Current view N: 737

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IQ distribution in Bulgaria (p10-p90)

Bulgaria
85100115
IQ-style 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 groupIQ-style scoreApprox. intervalN
Young Adult (19-35)98.797.2–100.2314
Adult (36-65)97.596–99316
Youth (12-18)96.793.6–99.882
Senior (66-100)96.291.4–10125

Average IQ in Bulgaria by gender

Gender table
GenderIQ-style scoreApprox. intervalN
Male99.598–101373
Female96.395.1–97.5361

Average IQ in Bulgaria by education level

Small sample: at least one group has N<50 (estimates are unstable).
Education table (largest samples)
Education levelIQ-style scoreApprox. intervalN
Primary or Secondary96.494.5–98.3273
Master degree101.499.5–103.3171
Bachelor9996.8–101.2148
Post Secondary95.393–97.6100
Short-cycle tertiary96.290.4–10230
Doctorate100.594.4–106.613

Average IQ in Bulgaria by study area

Note: groups with N<20 are hidden by default.
Top study areas in Bulgaria (N >= 20)
RankStudy areaIQ-style scoreApprox. intervalN
1Engineering and Technology102.499.6–105.293
2Mathematics100.995.3–106.524
3Medicine and Health99.996.2–103.635
4Computer Science99.796–103.431
5Visual Arts99.393.6–10526
6Performing Arts98.889.5–108.122
7Languages and Literature98.292.7–103.733
8Law98.295.4–10120
9No diploma9794.6–99.4131
10Economics96.894.2–99.4113
11Business95.291.6–98.838
12History94.588.7–100.320
13Social Work93.590–9737

Average IQ in Bulgaria: frequently asked questions

What is the average IQ in Bulgaria?
Our dataset shows an average of 98 IQ-style points for Bulgaria, based on 737 results (Approx. interval 97–99, median 96.4).
How many people from Bulgaria took the test?
2,026 results from Bulgaria are included in our dataset, of which 737 pass our internal validation checks for timing, completion and consistency.
Is this the same as the average IQ of the population?
These are averages from self-selected participants in the UniversalIQTest.com online test (not population IQ).
Data last updated: 2026-11-05 (latest test submission).
Page refreshed: 2026-11-06 21:49:17.215 UTC (site build time).

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