Mental Health in America vs. Other Countries: How the US Compares

It is a common assumption that the United States is uniquely stressed — that Americans, on any honest accounting, must be among the most anxious and depressed people on earth. The international data tell a more complicated story. On the standard modeled measures used to compare countries, U.S. mental health prevalence sits above the global average, roughly in line with other wealthy nations, and — importantly — below several of them.

That last point surprises people. On depression, the United States ranks behind the United Kingdom, the Netherlands, Switzerland, and Greece. On total mental-disorder prevalence, it trails the Netherlands, Portugal, the UK, and Australia. Where the U.S. clearly does stand apart is not in how sick its population is, but in how much of that illness is measured, named, and treated — a distinction that runs through every comparison below.

This article compares the United States with the world and with its high-income peers using estimates from the Institute for Health Metrics and Evaluation’s Global Burden of Disease (GBD) study, presented largely through Our World in Data (OWID), alongside domestic U.S. survey figures. A caution before the numbers: every cross-country prevalence figure here is a modeled statistical estimate, not a case count, and the tables draw on different metrics and years. We flag those mismatches as we go. For the U.S. foundation behind these comparisons, see the any mental illness pillar and the national mental health overview.

Depression: The U.S. Is Above Average, Below Its Peers

Depression is the clearest illustration of the pattern. Using age-standardized estimates for 2023, the United States has a depressive-disorder prevalence of about 4.62% — higher than the world figure of 3.81% and modestly above the high-income group average of 4.02% (IHME, via Our World in Data, 2023). So Americans are somewhat more likely to carry a depression diagnosis than the global average population.

But among wealthy countries, the U.S. is far from the top. Several European nations post higher age-standardized rates:

Source: IHME GBD 2023, via Our World in Data (all figures age-standardized, 2023 estimates).

The United Kingdom’s estimate is nearly half again as high as the U.S. figure. Globally, the highest modeled depression rates in 2023 belong to Syria (7.95%) and the UK (6.80%), while the lowest is Singapore (1.73%) (IHME, via Our World in Data, 2023). Income group does not move in a simple line, either: low-income countries average 4.79% — higher than high-income (4.02%), lower-middle (3.89%), and upper-middle (3.50%) — a reminder that depression burden does not track neatly with national wealth. For the full country-by-country breakdown, see our depression rates by country analysis and the depression pillar.

For context on the worldwide total, the World Health Organization estimates roughly 332 million people had depression as of its latest fact sheet, about 4% of the world, and notes depression is roughly 1.5 times more common in women than men (WHO, 2025).

Anxiety: A Different Metric, the Same Broad Story

Anxiety follows a similar shape, but here a methodology warning is essential: the country anxiety data below are crude, all-ages estimates for 2021 — a different metric and a different year than the age-standardized 2023 depression figures above. You cannot line the two tables up value-for-value.

On that 2021 crude basis, U.S. anxiety-disorder prevalence is about 6.40%, above the world figure of 4.88% and the high-income average of 5.88% (IHME, via Our World in Data, 2021). Once again the U.S. is elevated relative to the world but not exceptional among peers. The highest crude 2021 rates belong to Portugal (11.42%), Malta (10.84%), and Brazil (10.45%), with the Netherlands, Australia, and the United Kingdom all near or above 9.5%. At the regional level, the Americas post the highest anxiety prevalence of any WHO region (7.31%).

Anxiety is the most common mental disorder worldwide — the WHO counts roughly 359 million people with an anxiety disorder — yet only about one in four who need care receive treatment (WHO, 2025). Our global anxiety statistics piece and the anxiety pillar cover the international picture in depth.

All Mental Disorders: The U.S. Is Not the Highest

Pulling every mental disorder together, the crude, all-ages 2023 estimate puts 18.0% of the U.S. population with a mental disorder — above the world figure of 14.5% and the high-income average of 16.4% (IHME, via Our World in Data, 2023). Elevated, yes. Highest, no.

Source: IHME GBD 2023, via Our World in Data (crude, all-ages, 2023 estimates). Note the metric differs from the age-standardized depression table above.

Six high-income countries sit above the United States on this measure, with the Netherlands more than five percentage points higher. Globally, GBD 2023 estimates that about 1.17 billion people — roughly one in seven — had a mental disorder, with an age-standardized prevalence near 14.2% and a 95.5% increase in prevalent cases since 1990 (IHME, 2026). For the full ranking of nations and burden measures, see our world mental health rankings.

The Real U.S. Difference: Measurement and Treatment

Where the United States genuinely diverges is on the domestic side — both in how prevalence is measured at home and in how much of it is treated.

U.S. national surveys, which ask about symptoms and diagnoses directly rather than modeling burden, produce higher-looking numbers than the GBD estimates because they measure something different. The National Institute of Mental Health reports that 23.1% of U.S. adults — 59.3 million people — had any mental illness in 2022, with 6.0% (15.4 million) meeting the threshold for serious mental illness (NIMH, 2022). Past-year major depressive episodes affected 8.3% of adults (21.0 million) in 2021 (NIMH, 2021).

The treatment side is where America looks unusually capable. Among U.S. adults with any mental illness, 50.6% received treatment in the past year, rising to 66.7% for those with serious mental illness (NIMH, 2022). Compare that with the international benchmark: across high-income countries, only about one third of people with depression receive treatment, and globally just 27.6% of people with an anxiety disorder get care (WHO, 2025). In low-income countries, fewer than 10% of affected people receive any care at all. The U.S. treatment gap is real and much criticized — roughly half of adults with a mental illness still go untreated — but by international standards it is a comparatively high rate of care.

That combination is the key to reading the comparison honestly. Higher screening, greater awareness, and readier help-seeking all push measured prevalence up even as they reflect a system that is finding and treating more illness.

Why Measured U.S. Rates Run High

The most important caveat in any “which country is most depressed” comparison is that measured prevalence partly reflects who feels able to report symptoms and seek help — not just who is ill. The clearest evidence comes from the WHO World Mental Health (WMH) Surveys, a cross-national program (with data collected roughly 2001–2011, so older figures) that used a single standardized instrument across dozens of countries.

The WMH results are striking. Lifetime major depression was more common in high-income countries (14.6%) than in low- and middle-income countries (11.1%), and the highest lifetime rates — above 18% — appeared in France, the Netherlands, New Zealand, and the United States. U.S. lifetime major depressive disorder came in at 16.9%, the highest across the WMH sites (Bromet et al., WMH Surveys). Yet the survey’s most telling finding is the twist: the highest-prevalence countries generally reported the lowest levels of impairment among those affected.

That inverse relationship is hard to square with the idea that wealthy, high-reporting nations are simply “more depressed.” It fits far better with a measurement story: in places where mental illness is openly discussed, screened for, and destigmatized, more people recognize and disclose milder symptoms, lifting measured prevalence while the average severity falls. The United States, with heavy screening and comparatively low stigma, sits squarely in that pattern. So the U.S. numbers should be read as reflecting a mix of true burden and a health culture primed to detect and report it — not as proof that Americans are the most depressed people on earth.

A Note on Comparing These Numbers

Because this article draws on several data sources, it is worth restating the mismatches so no figure is over-read:

• Depression country data are age-standardized 2023 estimates (IHME via OWID).
• Anxiety country data are crude, all-ages 2021 estimates (IHME via OWID).
• Total-disorder country data are crude, all-ages 2023 estimates (IHME via OWID).
• U.S. domestic figures (AMI, SMI, MDE, treatment) come from NIMH/SAMHSA national surveys, which measure diagnosed conditions and symptoms rather than modeled burden.

Age-standardized figures adjust for a country’s age structure; crude figures do not. A crude value and an age-standardized value for the same country will differ, and 2021 and 2023 vintages are not interchangeable. Treat every cross-country figure as an estimate with uncertainty, and compare within a single metric and year wherever possible. For the current U.S. snapshot alongside these global figures, see our mental health statistics 2026 roundup.

Frequently Asked Questions

Does the United States have the highest depression rate in the world?

No. On age-standardized 2023 estimates, U.S. depression prevalence is about 4.62% — above the world average of 3.81% but below the United Kingdom (6.80%), the Netherlands (6.21%), Switzerland (5.21%), and Greece (5.20%) (IHME, via Our World in Data, 2023). These are modeled estimates, not case counts.

Is mental illness more common in America than in other countries?

The U.S. sits above the global average but not at the top among wealthy nations. About 18.0% of the U.S. population had a mental disorder in 2023 (crude estimate), compared with 14.5% worldwide — yet the Netherlands (23.2%), Portugal (22.3%), the UK (22.0%), and Australia (21.7%) all rank higher (IHME, via Our World in Data, 2023).

Why do U.S. mental health numbers look so high?

Partly because the U.S. screens heavily, discusses mental health openly, and has comparatively low stigma, all of which raise measured prevalence. The WHO World Mental Health Surveys found the U.S. had the highest lifetime major depression rate (16.9%), but that the highest-prevalence countries generally reported the lowest impairment — consistent with a measurement and help-seeking effect rather than simply more illness (Bromet et al., WMH Surveys).

How does U.S. mental health treatment compare internationally?

Favorably on coverage. About 50.6% of U.S. adults with any mental illness and 66.7% of those with serious mental illness received treatment in 2022 (NIMH, 2022). Across high-income countries, only about one third of people with depression receive care, and globally about 27.6% of people with anxiety are treated (WHO, 2025).

Can these country figures be compared directly?

Only with care. The depression figures are age-standardized for 2023, the anxiety figures are crude for 2021, and the total-disorder figures are crude for 2023. Different metrics and years are not interchangeable, and every figure is a modeled estimate with uncertainty.

Sources

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3. World Health Organization. Anxiety disorders (fact sheet). WHO; 2025 (IHME GBD 2021). https://www.who.int/news-room/fact-sheets/detail/anxiety-disorders
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