Anxiety disorders are the single most common mental health condition in the world. An estimated 359 million people globally had an anxiety disorder in 2021, representing about 4.4% of the world’s population. In the United States, the numbers are significantly higher: roughly 19% of adults experience an anxiety disorder in any given year, and the rates among teenagers are even steeper.
Global and U.S. Prevalence
That 4.4% global figure might sound modest, but it translates to more people than the entire population of the United States. And rates vary dramatically by country. In the U.S., anxiety is far more prevalent than the global average. NIMH data show that 23.4% of women and 14.3% of men met criteria for an anxiety disorder in the past year alone. That means nearly one in four American women and one in seven American men are affected annually.
These numbers have also been climbing. From 1990 to 2021, global anxiety rates trended steadily upward, with a sharp spike between 2019 and 2021. The COVID-19 pandemic drove a 26% increase in anxiety disorders worldwide in 2020 alone, hitting women and young people hardest.
Women Are Affected at Nearly Twice the Rate
Across every age group, women and girls develop anxiety disorders more often than men and boys. Among U.S. adults, the gap is notable: 23.4% of women versus 14.3% of men. Among adolescents, 38% of girls will experience an anxiety disorder at some point during their teenage years, compared to 26.1% of boys. This pattern holds globally and appears to be driven by a combination of hormonal differences, social stressors, and differences in how anxiety manifests and gets reported.
Anxiety in Children and Teens
Anxiety is now the most commonly diagnosed mental health condition in children. Based on 2022-2023 U.S. data, 11% of children ages 3 to 17 have a current, diagnosed anxiety disorder. The rates increase sharply with age: just 2.3% of children ages 3 to 5 are diagnosed, compared to 9.2% of those ages 6 to 11 and 16% of adolescents ages 12 to 17.
Diagnosis figures likely undercount the real burden. Among U.S. adolescents ages 12 to 17 surveyed between 2021 and 2023, 20% reported anxiety symptoms in the past two weeks, regardless of whether they had a formal diagnosis. That suggests a sizable group of teenagers are experiencing significant anxiety without being identified or treated.
Types of Anxiety Disorders
Anxiety isn’t one condition. It’s an umbrella covering several distinct disorders, each with its own prevalence. Social anxiety disorder is one of the most common: about 7.1% of U.S. adults experience it in any given year, and 12.1% will deal with it at some point in their lives. Among adolescents, the past-year rate is even higher at 9.1%. Generalized anxiety disorder, panic disorder, and specific phobias (like fear of flying or heights) round out the major categories, and many people meet criteria for more than one type simultaneously.
The Overlap With Depression
Anxiety rarely travels alone. More than 50% of people with a diagnosed anxiety or depressive disorder also have a second one. Among people with major depression, roughly half also meet criteria for an anxiety disorder. In primary care settings, where most people first seek help, that overlap is even more striking: over 75% of patients diagnosed with depression also have a current anxiety disorder.
The relationship runs both directions. Having an anxiety disorder dramatically increases the likelihood of developing depression within the following year, with some estimates suggesting the risk is 7 to 62 times higher depending on the specific type of anxiety. This two-way connection is one reason clinicians screen for both conditions together, and why treatment plans often need to address them as a pair rather than in isolation.
The Cost of Untreated Anxiety
Lost productivity from anxiety and depression together costs the global economy an estimated $1 trillion per year. That figure captures missed workdays, reduced performance, and early workforce exit. On the flip side, research published in The Lancet found that every $1 invested in scaling up treatment for anxiety and depression returns about $4 in improved health and productivity. The economic case for treatment is unusually clear-cut, yet a large gap persists between the number of people who have anxiety disorders and the number who receive any form of professional care.
If you’re wondering whether your own anxiety is “normal” or common enough to warrant attention, the numbers offer a straightforward answer: anxiety disorders affect hundreds of millions of people, they’re more common than any other mental health condition, and they’re highly treatable. Experiencing anxiety doesn’t make you unusual. It makes you part of the largest diagnostic category in mental health worldwide.