QUESTION: Which countries have the greatest rate of mental illness in the world?
ANSWER: Measuring mental illness rates globally is complex because "high" rates often reflect a combination of actual prevalence and a country's ability to diagnose and report cases. Based on recent 2024–2025 data, several countries consistently appear at the top of these rankings due to high self-reporting or advanced clinical tracking. [1, 2]
Countries with the Highest Overall Rates
Recent studies, including those by the Institute for Health Metrics and Evaluation (IHME), identify the following countries with the highest age-standardized prevalence rates for all mental disorders: [3, 4]
Australia: Often reports the highest rates globally, with some 2024–2025 surveys indicating up to 43% of adults experienced mental health symptoms in a 12-month period.
The Netherlands: Consistently ranks at the top for overall prevalence, with roughly 22,893 cases per 100,000 people.
The Netherlands with a rate of approximately 22,116 per 100,000.
United States: Reports high rates of both general mental illness (roughly 23.4% of adults) and serious mental illness.
Greenland: Often cited for having the highest rate of depressive disorders and overall mental health burden relative to its population. [2, 3, 4, 5, 6, 7, 8, 9]
Top Countries by Specific Condition (2025–2026 Projections)
When looking specifically at depressive and anxiety disorders, which are the most common mental health conditions globally, the following countries have the highest estimated shares of their populations affected: [10, 11, 12, 13, 14]
| Rank [3, 9, 10, 15, 16] | Country | Prevalence Rate (Approx.) |
|---|---|---|
| 1 | United Kingdom | 7.0%–7.4% |
| 2 | Netherlands | 6.9%–7.2% |
| 3 | Ukraine | 6.6%–6.7% |
| 4 | Tunisia | 6.1%–6.3% |
| 5 | Lebanon | 5.9%–6.1% |
Why these countries rank so high
High rankings in developed nations like Australia, the UK, and the USA are often attributed to robust healthcare systems that actively screen for and record these conditions, alongside high levels of psychosocial stress. Conversely, high rates in countries like Ukraine, Lebanon, and Palestine are frequently linked to economic instability and prolonged conflict. [10, 16, 17]
In contrast, some of the lowest reported rates are in East Asia (China, Japan, and Vietnam), though experts caution these figures may be influenced by cultural stigma and underreporting. [3, 6, 18, 19, 20]
Would you like to know more about the specific types of mental health conditions—such as anxiety vs. depression—or how reporting accuracy varies between regions?
[1] https://www.thetreetop.com
[2] https://www.the-star.co.ke
[3] https://www.healthdata.org
[4] https://www.healthdata.org
[5] https://www.healthdata.org
[6] https://www.the-star.co.ke
[7] https://www.nami.org
[8] https://pmc.ncbi.nlm.nih.gov
[9] https://www.usnews.com
[10] https://statranker.org
[11] https://www.instagram.com
[12] https://www.healthdata.org
[13] https://www.sciencedirect.com
[14] https://www.sciencedirect.com
[15] https://statranker.org
[16] https://x.com
[17] https://link.springer.com
[18] https://pmc.ncbi.nlm.nih.gov
[19] https://pulsetms.com
[20] https://pmc.ncbi.nlm.nih.gov
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WTP OPINION: Having been born in the USA then spending most my adult life traveling and living internationally I would very much agree with the AI on this one. The lack of social cohesion in the west combined with a massive decline of quality of live via inflation has really done a number on the people.