Average IQ of an Electrician: How Smart Is the Trade?
If you have ever watched an electrician trace a dead circuit through a wall they cannot see into, you already suspect the answer to this question. The average IQ of an electrician lands somewhere around 100 to 110 on the studies that measure it, which is right at the population average or a little above it. That range holds up across the two datasets people cite most often, and the honest story is a bit more interesting than a single number.
The reason the trade sits where it does is not that the work is simple. It is that the kind of thinking electrical work rewards, reading a space in three dimensions, sequencing a task safely, and diagnosing a fault by reasoning backward from symptoms, is only partly what a standard IQ test measures. So the number is real, but it undersells what a good electrician actually does with their head all day.
What the data actually says
Two large sources put electricians in the average-to-slightly-above band, and they mostly agree.
The cleanest research figure comes from the National Longitudinal Survey of Youth 1979 (NLSY79). Analysts at Cogn-IQ converted AFQT percentile scores from 9,774 respondents into IQ equivalents and grouped people by their main career occupation. Electrical and electronic technicians came out at an average IQ of 100.4, squarely in the "average" band on the Wechsler scale. Electrical and electronic engineers, a more academic role, sat higher at 105.8.
A second source draws on self-selected online testers rather than a national sample. BRGHT reports an average IQ of 99.76 for electricians, based on roughly 1.5 million people who took its test, ranking the job at #292 in its occupation list. Different method, similar answer: right around 100.
| Occupation | Estimated average IQ | Source |
|---|---|---|
| Physician | 123.7 | NLSY79 (Cogn-IQ) |
| Electrical / electronic engineer | 105.8 | NLSY79 (Cogn-IQ) |
| Electrician (technician) | 100.4 | NLSY79 (Cogn-IQ) |
| Electrician (all) | 99.76 | BRGHT online sample |
| Carpenter | 92.6 | NLSY79 (Cogn-IQ) |
| Heavy equipment mechanic | 86.7 | NLSY79 (Cogn-IQ) |
| Farm worker | 81.3 | NLSY79 (Cogn-IQ) |
A couple of things stand out in that table. First, electricians tend to score at the top of the skilled-trades cluster, above carpenters and mechanics, and not far below the engineers who design the systems they install. Second, the whole span from physician to farm worker is only about 42 IQ points, which is a reminder that occupation is a weak predictor of any one person's score. Plenty of electricians test well above 110, and plenty of people with a 115 never touch a trade.
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Why electrical work rewards spatial and practical intelligence
The average number captures verbal and abstract reasoning well. It captures the mental rotation, mechanical reasoning, and real-time problem-solving that define electrical work far less well.
Wiring a building is a spatial task before it is anything else. An electrician looks at a flat two-dimensional plan and has to build the three-dimensional run in their head: where the cable turns, how circuits share a panel, what sits behind the drywall that they must not drill into. Research on spatial ability, including the long-running Study of Mathematically Precocious Youth, finds that spatial reasoning is a strong predictor of success across STEM and technical fields, and it is exactly the ability that IQ tests weight lightly compared with verbal and numerical items.
Then there is the diagnostic side. A fault in a live system gives you symptoms, not answers. Reasoning from "these two outlets are dead but the light works" to a specific break in the circuit is applied deductive logic under time pressure, with the added detail that a wrong guess can be dangerous. Psychologists call this concrete or practical intelligence, the ability to act effectively in real, physical situations, and it is only loosely correlated with the abstract intelligence that classroom tests and IQ items are built around.
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The honest caveat: IQ tests undervalue hands-on skill
Here is the part most "average IQ by job" lists skip. A number near 100 does not mean electricians are averagely capable thinkers. It means the specific abilities a standard IQ test samples happen to be average in that group, while the abilities the job leans on hardest, spatial modeling, mechanical reasoning, and situational judgment, are barely on the test at all.
That gap matters for how you read any occupational IQ figure, as of 2026. These datasets have real limits. The NLSY79 numbers come from a test (the AFQT) built to predict military training success, converted into IQ equivalents; the online samples are self-selected, so whoever chooses to take a free IQ test skews the result. Neither one watched a single person actually wire a panel. An electrician who tests at 100 but can hold a building's entire electrical system in their head and troubleshoot it blind is demonstrating a form of intelligence the score never saw.
So the fair reading is this: electricians sit near the population average on the narrow slice of thinking IQ tests measure, and well above it on the practical intelligence the trade actually runs on. Both things are true, and only one of them shows up in the number.
FAQ
Q: What is the average IQ of an electrician?
A: Around 100 to 110, average to slightly above average. NLSY79 data puts electrical technicians at 100.4, and a large online sample (BRGHT) reports 99.76. Both land right around the population average of 100, with electricians typically scoring at the top of the skilled-trades group.
Q: Are electricians smart?
A: Yes, in ways a single IQ number does not fully show. Electrical work depends heavily on spatial reasoning, mechanical aptitude, and real-time fault diagnosis. Those abilities are only lightly sampled by standard IQ tests, so the average score understates the practical intelligence the job demands.
Q: Do electricians have higher IQs than other tradespeople?
A: Generally, yes, at the higher end of the trades. In NLSY79 data, electrical technicians (100.4) score above carpenters (92.6) and heavy equipment mechanics (86.7), and not far below electrical engineers (105.8). Occupation is still a weak predictor of any individual's score.
Q: Does a high IQ make someone a better electrician?
A: Only partly. Raw abstract reasoning helps with learning codes and theory, but spatial ability, hands-on judgment, safety discipline, and experience matter at least as much on the job. Many excellent electricians test near average because the test misses their strongest skills.
References
- Average IQ by Occupation: 40 Jobs Ranked (NLSY79) - Cogn-IQ
- Average IQ for Electrical / Electronic Technician: 100.4 - Cogn-IQ
- Electrician IQ scores - BRGHT
- Beyond College: How Skilled Trades Are Redefining Smart - Forbes
Last updated: July 13, 2026
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