Roughly 0.5% to 1% of the population identifies as transgender in countries where reliable data exists, though no single global figure covers every nation. The best estimates come from a handful of countries that have started including gender identity questions in national surveys, and those numbers vary depending on how questions are asked, who is surveyed, and whether people feel safe answering honestly.
What the Numbers Look Like by Country
In the United States, about 0.8% of adults (over 2.1 million people) identify as transgender, according to estimates from the Williams Institute at UCLA. When teens aged 13 to 17 are included, the figure rises to 1.0% of the population aged 13 and older, totaling roughly 2.8 million people.
In England and Wales, the 2021 census asked residents whether their gender identity matched the sex recorded on their birth certificate. Of the 45.7 million people aged 16 and older who answered, 262,000 (0.54%) said their gender identity was different from their birth sex. Canada’s 2021 census found a national average of 0.33% of people aged 15 and older identifying as transgender or non-binary, with provincial rates ranging from 0.14% in Quebec to 0.48% in Nova Scotia.
These are some of the only countries collecting this data at a national scale. Most nations, particularly across Africa, the Middle East, and large parts of Asia, do not include gender identity questions in their census or health surveys. That makes any global percentage an educated guess at best.
Why Younger People Report Higher Rates
One consistent pattern across surveys is that younger age groups identify as transgender at higher rates than older adults. In the U.S., 3.3% of youth aged 13 to 17 (about 724,000 people) identify as transgender, compared to 0.8% of adults. In Canada, provinces with the highest rates among 15- to 34-year-olds, like Nova Scotia at 1.17%, show numbers roughly double or triple the rates for the general population.
Whether this reflects a genuine generational shift, greater comfort with self-identification among younger people, or broader cultural awareness of transgender identities is still debated. It is likely a combination of all three. Older adults who grew up without language for their experience, or in environments where disclosure carried serious consequences, may simply never appear in survey data.
Transgender Identities Are More Diverse Than Many Assume
The word “transgender” covers a wider range of identities than people often realize. A KFF survey of trans adults in the U.S. found that 40% identify as non-binary, meaning they don’t see themselves as exclusively male or female. About 22% identify as trans women, 12% as trans men, and another 22% as gender non-conforming. A small number describe themselves as agender or genderfluid.
Among younger trans adults (18 to 34), non-binary identification is even more common, at 47%, compared to 32% of those 35 and older. This means that when surveys ask only whether someone is “male” or “female,” they miss a substantial portion of transgender and gender-diverse people entirely.
Why Accurate Numbers Are Hard to Pin Down
The biggest reason there’s no reliable global figure is that most countries simply don’t ask. Gender identity is not included in the census or national health surveys of the vast majority of nations. Even in the U.S., transgender identity is not measured by the main census, and inclusion in federal health surveys has expanded or contracted depending on the political priorities of the administration in power at the time.
Survey design itself introduces error. Questions about gender identity can be worded in ways that confuse respondents, and the diversity of transgender identities makes it difficult to capture everyone with a single question. Some people may not identify with the term “transgender” even if their experience fits the definition. Others may not disclose their identity on a government form, particularly in places where being transgender carries legal penalties or social stigma.
In countries where transgender people face criminalization, violence, or forced medical procedures, survey data is essentially nonexistent. This means global estimates are heavily weighted toward Western, English-speaking nations with relatively more legal protections, and the true worldwide figure remains unknown.
What the Available Data Suggests Overall
Taking the data that does exist, somewhere between 0.3% and 1% of the population identifies as transgender in countries that measure it. The variation depends heavily on how broad the definition is (whether non-binary identities are included), the age range surveyed, and how safe respondents feel answering. Countries with stronger legal protections and more cultural visibility tend to report higher numbers, not necessarily because more transgender people live there, but because more people feel able to say so. The actual proportion of people whose internal sense of gender differs from their birth sex is almost certainly higher than any current survey captures.