Approximately 332 million people worldwide have depression, representing about 4% of the global population. That number has grown significantly in recent years, and the real figure is likely higher since many cases go undiagnosed. Here’s what the data shows across different populations and age groups.
Global Numbers at a Glance
The World Health Organization estimates that 5.7% of adults worldwide experience depression. That 332 million figure includes people of all ages and spans every country, though rates vary widely by region, income level, and access to healthcare. Depression is one of the leading causes of disability globally, and the economic toll is staggering: an estimated 12 billion working days are lost every year to depression and anxiety combined, costing roughly $1 trillion annually in lost productivity.
Depression in the United States
Rates in the U.S. are notably higher than the global average. CDC data from 2021 to 2023 found that 13.1% of Americans aged 12 and older had experienced depression in the prior two weeks. That’s a sharp rise from 8.2% in 2013 to 2014, meaning the prevalence of depression in the U.S. increased by nearly 60% over roughly a decade.
A separate CDC survey looking specifically at depression symptoms in adults found even higher numbers. In 2022, about 21.4% of U.S. adults reported some level of depression symptoms in the past two weeks, up from 18.5% in 2019. Young adults aged 18 to 29 were hit hardest, with 26.9% reporting symptoms in 2022 compared to 21.0% in 2019. Adults aged 30 to 44 saw a similar jump, rising from 16.8% to 21.8% over the same period.
How Rates Differ by Gender
Women are nearly twice as likely as men to be diagnosed with depression. This pattern holds across countries and age groups. In the U.S., 24.5% of women reported depression symptoms in 2022 compared to 18.0% of men. Both groups saw increases from 2019, when the figures were 21.8% for women and 15.0% for men.
The gap likely reflects a combination of biological, hormonal, and social factors. But it’s also possible that men are underdiagnosed. Men are less likely to seek help for mood symptoms and may express depression differently, through irritability or substance use rather than sadness, which can lead clinicians to miss the diagnosis.
Depression Among Teenagers
The numbers for adolescents are especially concerning. In 2023, the CDC found that 4 in 10 high school students reported persistent feelings of sadness or hopelessness. That 40% figure doesn’t mean all of those students meet the clinical threshold for a depression diagnosis, but persistent sadness and hopelessness are core features of depressive disorders and strong predictors of future episodes.
The broader CDC data covering ages 12 and up shows that the overall rise in depression prevalence is not driven by any single age group. Teenagers and young adults consistently report the highest rates, but every demographic has shifted upward.
Depression in Older Adults
Depression rates actually drop in later life compared to younger age groups. Approximately 4% of adults aged 70 and older have depression, according to the CDC. That’s well below the national average, but it comes with a caveat: depression in older adults often looks different and gets missed. Symptoms like fatigue, sleep problems, and loss of appetite can overlap with other medical conditions or get chalked up to normal aging. Older adults are also less likely to report feeling “sad” and more likely to describe physical complaints, which makes screening harder.
The Post-Pandemic Increase
Depression was rising before COVID-19, but the pandemic accelerated the trend. Comparing 2019 to 2022, the percentage of U.S. adults with any depression symptoms climbed from 18.5% to 21.4%. That increase was consistent across nearly every demographic and geographic group the CDC examined. Young adults, women, and people in lower income brackets saw some of the steepest rises, but the shift was broad enough that researchers describe it as a population-wide change rather than something confined to vulnerable groups.
The reasons go beyond the direct effects of illness and lockdowns. Economic disruption, social isolation, grief, and disrupted routines all contributed. Several years after the acute phase of the pandemic, rates have not returned to pre-2020 levels, suggesting the increase may reflect a lasting shift rather than a temporary spike.
How Many People Go Untreated
A large share of people with depression never receive treatment. Globally, the treatment gap is enormous, particularly in low- and middle-income countries where mental health services are scarce. Even in wealthier nations with more resources, barriers like cost, stigma, long wait times, and difficulty recognizing symptoms keep many people from getting help. In the U.S., where access to care is comparatively better, a significant portion of people who screen positive for depression on surveys have never spoken to a healthcare provider about their symptoms.
This means the 332 million global figure, as large as it is, likely undercounts the true burden. Depression is diagnosed through clinical interviews and self-reported symptoms, and people who avoid healthcare systems or don’t recognize their own symptoms simply don’t get counted.