How Common Is Prosopagnosia? One Estimate Puts It at 1 in 33

Several earlier studies estimated the prevalence of developmental prosopagnosia, and a figure of roughly 2% has often been cited. That's not a small proportion, but because prosopagnosia itself isn't widely known, it has tended to carry an impression of being a "rare condition."

Estimates like this can shift depending on the number of participants, the region studied, and the method used to measure difficulty with face recognition. As research accumulates, prevalence estimates naturally get revisited.

A 2023 study by DeGutis and colleagues, published in the journal Cortex, used data from a large-scale online survey to estimate that roughly 3% of people have developmental prosopagnosia — about 1 in 33 by simple arithmetic. That's somewhat higher than the 2% figure that has often been cited previously.

This difference doesn't mean prosopagnosia has suddenly become more common. It's more natural to understand it as an updated estimate driven by differences in survey methodology and where the line is drawn for what counts as "prosopagnosia." In a sense, as research has advanced, a more precise estimate has come into focus.

An important point when thinking about prevalence is that face recognition ability isn't a simple yes-or-no split — it's considered to be distributed continuously, as a spectrum. Most people fall somewhere in the middle, with so-called "super-recognizers" at one end who are exceptionally good at it, and people at the other end whose difficulty identifying faces is severe enough to interfere with daily life.

So the "3%" figure is best understood not as the share of people clearly inside some fixed boundary, but as an estimate of how many people are judged to have significant difficulty under a particular threshold. Draw the line differently, and the percentage would shift too.

A rate of 1 in 33 means it wouldn't be unusual to find more than one person with prosopagnosia in a typical school class or workplace. And yet, because the word itself isn't widely known, many people simply assume they're "just worse than others at remembering people" and go through life without ever mentioning it to those around them.

The relatively high prevalence suggests prosopagnosia isn't a condition limited to a special few — to varying degrees, it's something many people may be able to relate to. Rather than judging yourself or someone close to you by the numbers alone, reflecting concretely on which everyday situations actually cause difficulty is a more useful way to understand it.