An estimated 1.3 billion people worldwide live with a significant disability, according to the World Health Organization. That’s roughly 16% of the global population, or about 1 in every 6 people. This figure makes people with disabilities the world’s largest minority group, and the number is rising as populations grow and age.
Where the 1.3 Billion Figure Comes From
You may see different numbers depending on the source. The United Nations fact sheet on disability cites an older WHO estimate of about 1 billion people, or 15% of the world’s population. The more recent WHO figure of 1.3 billion reflects updated data collection methods and a broader understanding of what counts as disability. Both refer to moderate-to-severe functional limitations in areas like mobility, vision, hearing, cognition, and mental health.
Counting disability globally is genuinely difficult. Most international surveys use a standardized set of six questions (known as the Washington Group Short Set) that ask people about difficulty seeing, hearing, walking, remembering, self-care, and communicating. Different surveys use slightly different thresholds for what qualifies as a disability, which is why estimates vary. The 16% figure captures people who experience “significant” difficulty in at least one of these areas, not just those with the most severe impairments.
Disability Across Age Groups
Disability rates climb sharply with age. Among children under 5, roughly 4% to 7.5% have a disability depending on which global database you reference and whether mild impairments are included. For children and adolescents aged 5 to 17, the rate rises to about 12.5%. UNICEF’s 2022 report estimated that 236 million children under 18 worldwide live with moderate-to-severe disabilities. When mild disabilities are included, the Global Burden of Disease study puts the number of young people under 20 with some form of disability at about 291 million.
Among older adults, the prevalence is far higher. People over 60 account for a disproportionate share of the global disability population, largely due to age-related conditions like arthritis, vision loss, hearing decline, and dementia. As global life expectancy increases, this group continues to expand.
Gender and Geography Matter
Women are more likely to develop disabilities than men, but the size of that gap depends heavily on where they live. In countries with high gender inequality (measured by factors like access to education, healthcare, and economic opportunity), women face dramatically higher disability rates. In China, for example, women aged 65 to 69 had disability rates 8 to 9 percentage points higher than men of the same age. In Denmark, where gender equality is stronger, women in the same age group actually had slightly lower rates than men.
At older ages, these country-level differences widen further. Among people aged 80 to 84, women in Belgium, Croatia, Spain, and China had disability rates more than 10 percentage points higher than men. Meanwhile, women in Denmark, Luxembourg, and Sweden had rates 2 to 3 percentage points lower. The pattern is clear: gender inequality itself appears to be a driver of disability, not just biology.
Geography matters in another way too. About 80% of the world’s 1.3 billion people with disabilities live in low- and middle-income countries. Only about 21% live in high-income countries. This concentration reflects disparities in healthcare access, nutrition, workplace safety, and the availability of assistive devices like wheelchairs, hearing aids, and glasses.
The Link Between Disability and Poverty
Disability and poverty reinforce each other. People with disabilities are widely cited as being twice as likely to live in poverty compared to people without disabilities, and a large systematic review of studies in low- and middle-income countries found that 81% of research confirmed a strong relationship between the two. Poverty increases the risk of disability through malnutrition, dangerous working conditions, and limited healthcare. Disability, in turn, makes it harder to earn a living and escape poverty.
Employment numbers illustrate the cycle. In developing countries, 80% to 90% of working-age people with disabilities are unemployed. In industrialized countries, the figure ranges from 50% to 70%. Even in the most developed economies, the official unemployment rate for people with disabilities is at least double the rate for those without.
Why the Numbers Are Growing
The global disability population is expected to keep rising for two main reasons: population growth and aging. These are not small shifts. As one example, osteoarthritis, one of the leading causes of disability worldwide, is projected to nearly double in prevalence between 2021 and 2050, reaching an estimated 1.2 billion cases. Population growth accounts for roughly 74% of that increase, aging accounts for about 16%, and changes in disease patterns make up the rest.
Similar trends apply across many conditions that cause disability. More people are surviving strokes, injuries, and chronic diseases that would have been fatal a generation ago. They’re living longer, often with lasting functional limitations. The result is a world where the total number of people with disabilities will almost certainly continue climbing, even if the rate of new disability per person stays flat.
This growth puts increasing pressure on healthcare systems, social safety nets, and labor markets, particularly in countries that already have the fewest resources to support people with disabilities.