Mental health disorders appear worldwide and show up across ages and communities, with anxiety and depressive conditions among the most common. This page connects prevalence to disability and global burden of disease, and also looks at costs, suicide risk, and how access to treatment varies by country. You’ll also see how digital tools and real-world care pathways influence outcomes.
Key Takeaways
- 1 in 8 people (about 970 million) worldwide live with a mental disorder (2019 estimate)
- 13.0% of the global burden of disease and injury (DALYs) is attributable to mental disorders (2019)
- Globally, 1 in 6 people (about 16.5%) experience a mental health disorder each year
- 2019: Mental disorders accounted for 16.8% of all years lived with disability (YLDs) worldwide (IHME/GBD)
- 2018: Estimated annual economic cost of anxiety disorders in the US was $466.1 billion (JAMA Psychiatry)
- 2020: Global economic cost of anxiety disorders was estimated at US$0.60 trillion (peer-reviewed, disability and economic burden)
- 2023: 40.1% of US youth (age 12–17) with major depressive episode did NOT receive treatment
- In Australia, 1 in 5 people experience mental illness each year (AIHW)
- 2021: In England, 75.8% of referrals to Improving Access to Psychological Therapies (IAPT) entered treatment within 18 weeks
- 2022: Firearms accounted for 55.7% of suicide deaths in the United States (CDC)
- 2022: In the United States, 48,183 people died by suicide (CDC WONDER)
- 2019: 703,000 people died by suicide worldwide (WHO)
- 2021: 39% of US adults reported using digital mental health tools at least once (peer-reviewed survey; PubMed)
- 2023: In the UK, NHS Talking Therapies data shows 1.0 million people started treatment (IAPT/ NHS England)
- 2024: The number of mental health applications available in major app stores exceeded 20,000 (data report; App store analytics)
Mental disorders affect billions worldwide, driving major disability, lost work, and severe impacts on suicide.
Related reading
01 · Category
Mortality & Suicide6 stats
01
2022: Firearms accounted for 55.7% of suicide deaths in the United States (CDC)https://www.cdc.gov/suicide/facts/index.html
02
2022: In the United States, 48,183 people died by suicide (CDC WONDER)https://wonder.cdc.gov/controller/saved/D77/
03
2019: 703,000 people died by suicide worldwide (WHO)https://www.who.int/news-room/fact-sheets/detail/suicide
04
2022: Drug overdose deaths with mental and behavioral disorders accounted for a significant share of overdose-related mortality in the US (CDC, mental health and suicide data context)https://www.cdc.gov/nchs/products/databriefs/db485.htm
05
2021: 0.5% of adults in the United States reported a suicide attempt in the past year (NHIS)https://www.cdc.gov/nchs/data/databriefs/db444.pdf
06
2018–2019: The global prevalence of self-reported suicidal ideation was 6.4% (systematic review; WHO MH-GAP context)https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7719457/
Interpretation
Mortality & Suicide Interpretation
In the United States alone, 48,183 people died by suicide in 2022, and firearms were behind 55.7% of those deaths, underscoring how the “Mortality and Suicide” category is shaped by specific, preventable mechanisms rather than by suicide risk in general.
02 · Category
Industry Trends5 stats
01
2021: 39% of US adults reported using digital mental health tools at least once (peer-reviewed survey; PubMed)https://pubmed.ncbi.nlm.nih.gov/34503189/
02
2023: In the UK, NHS Talking Therapies data shows 1.0 million people started treatment (IAPT/ NHS England)https://digital.nhs.uk/data-and-information/publications/statistical/improving-access-to-psychological-therapies-iapt-activity
03
2024: The number of mental health applications available in major app stores exceeded 20,000 (data report; App store analytics)https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10195558/
04
2021: 33% of US adults who had used mental health apps said they used them to track symptoms (survey)https://www.apa.org/monitor/2021/10/tech-mental-health
05
2022: 61% of US behavioral health organizations increased staffing or capacity due to telehealth expansion (survey)https://www.ama-assn.org/delivering-care/model-of-care/telehealth/telehealth-survey
Interpretation
Industry Trends Interpretation
In the industry landscape, adoption of digital mental health is accelerating fast, with 39% of US adults using digital tools in 2021, 1.0 million starting NHS Talking Therapies in the UK in 2023, and app availability surpassing 20,000 in 2024, while telehealth expansion pushed 61% of US behavioral health organizations to increase capacity in 2022.
03 · Category
Prevalence & Burden4 stats
01
1 in 8 people (about 970 million) worldwide live with a mental disorder (2019 estimate)https://www.who.int/news-room/fact-sheets/detail/mental-disorders
02
13.0% of the global burden of disease and injury (DALYs) is attributable to mental disorders (2019)https://www.who.int/data/gho/data/themes/mental-health
03
Globally, 1 in 6 people (about 16.5%) experience a mental health disorder each yearhttps://www.who.int/news-room/fact-sheets/detail/mental-health-strengthening-our-response
04
2023: 21.3% of US adults reported experiencing at least one major depressive episode in their lifetime (NSDUH)https://www.samhsa.gov/data/sites/default/files/reports/rpt36322/NSDUH-2023-NSDUH-mental-illness.pdf
Interpretation
Prevalence & Burden Interpretation
For the Prevalence and Burden angle, the data show that mental disorders are both widespread and costly, affecting 1 in 8 people worldwide and accounting for 13.0% of global DALYs in 2019.
More related reading
04 · Category
Economic Impact4 stats
01
2019: Mental disorders accounted for 16.8% of all years lived with disability (YLDs) worldwide (IHME/GBD)https://vizhub.healthdata.org/gbd-results/
02
2018: Estimated annual economic cost of anxiety disorders in the US was $466.1 billion (JAMA Psychiatry)https://jamanetwork.com/journals/jamapsychiatry/fullarticle/2708530
03
2020: Global economic cost of anxiety disorders was estimated at US$0.60 trillion (peer-reviewed, disability and economic burden)https://www.sciencedirect.com/science/article/pii/S0165178119307795
04
2021: Lost labor force participation due to mental health conditions contributed billions in annual productivity loss in the US (OECD/WHO synthesis)https://www.oecd.org/health/health-systems/mental-health-and-the-path-to-inclusive-growth.htm
Interpretation
Economic Impact Interpretation
From 2018 to 2020, anxiety disorders alone carried an estimated annual burden rising from $466.1 billion in the US to $0.60 trillion globally, underscoring that under the economic impact category mental health is a rapidly escalating driver of large-scale productivity and cost losses.
05 · Category
Prevalence4 stats
01
19% of US adults aged 18+ reported having any mental illness in 2021, including 6.2% with serious mental illness, based on SAMHSA’s National Survey on Drug Use and Health (NSDUH) methodology.https://www.samhsa.gov/data/report/2021-nsduh-mental-health-findings
02
45.6% of adults in the United States reported symptoms of anxiety and/or depressive disorder during 2020–2022, based on pooled estimates reported by the US CDC/NCHS analysis of the National Health Interview Survey (NHIS) “Any Mental Illness” subset.https://www.cdc.gov/nchs/products/databriefs/db451.htm
03
7.8% of adults in England reported experiencing probable common mental disorder (CMD) in 2021, based on NHS Digital / Health Survey for England estimates (HSE/ONS).https://digital.nhs.uk/data-and-information/publications/statistical/health-survey-for-england
04
5.2% of the global population had anxiety disorders in 2019 (age-standardized), as estimated by the Global Burden of Disease (GBD) 2019 study.https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(22)01141-3/fulltext
Interpretation
Prevalence Interpretation
Across these prevalence measures, mental health conditions appear widespread, with 19% of US adults reporting any mental illness in 2021 and 45.6% reporting anxiety and or depressive symptoms during 2020 to 2022, showing that this category reflects both broad and persistent population level burden.
06 · Category
Overview10 stats
01
2023: 40.1% of US youth (age 12–17) with major depressive episode did NOT receive treatmenthttps://www.samhsa.gov/data/sites/default/files/reports/rpt36322/NSDUH-2023-mental-health-findings.pdf
02
In Australia, 1 in 5 people experience mental illness each year (AIHW)https://www.aihw.gov.au/reports-data/behaviours-risk-factors/mental-health
03
2021: In England, 75.8% of referrals to Improving Access to Psychological Therapies (IAPT) entered treatment within 18 weekshttps://digital.nhs.uk/data-and-information/publications/statistical/nhs-timeliness-statistics/march-2024
04
The global mental health apps market was valued at US$1.9 billion in 2023 and projected to reach US$9.0 billion by 2030 (market research estimate).https://www.grandviewresearch.com/industry-analysis/mental-health-apps-market
05
In the United Kingdom, 1.7 million people used digital mental health services via the NHS App/online routes in 2022 (NHS Digital / NHS England reported usage of mental health online offerings).https://www.england.nhs.uk/statistics/statistical-work-areas/mental-health/
06
In 2023, the number of users of mental health and wellness apps worldwide surpassed 450 million (consumer analytics estimate).https://datareportal.com/reports/digital-2024-global-overview-report
07
In the United States, 9.8% of adults aged 18+ reported serious thoughts of suicide in the past year in 2022 (NSDUH).https://www.samhsa.gov/data/report/2022-nsduh-mental-health-findings
08
In the United States, 27.0% of high school students reported persistent feelings of sadness or hopelessness in 2023 (Youth Risk Behavior Survey, CDC—adolescent mental health indicator).https://www.cdc.gov/yrbs/
09
Global economic burden from mental disorders (including productivity losses) was estimated at US$2.5 trillion in 2010 by a WHO-commissioned analysis (subsequently summarized in The Lancet psychiatry/health economics literature).https://www.thelancet.com/journals/lanpsy/article/PIIS2215-0366(14)70327-6/fulltext
10
Anxiety disorders alone cost the United States US$466.1 billion in 2018 (direct medical costs and workplace productivity loss combined), as reported by a JAMA Psychiatry analysis.https://jamanetwork.com/journals/jamapsychiatry/fullarticle/2755194
Interpretation
Industry Overview Interpretation
Across the mental health industry, millions of people are increasingly turning to faster and more accessible digital options, reflected in over 450 million worldwide app users in 2023 and 75.8% of IAPT referrals starting treatment within 18 weeks in England in 2021, even as 40.1% of US youth with major depressive episodes still receive no treatment.
Reference
Cite This Report
This report is designed to be cited. We maintain stable URLs and versioned verification dates. Copy the format appropriate for your publication below.
APA
Ryan Townsend. (2026, February 13). Mental Health Disorders Statistics. Gitnux. https://gitnux.org/mental-health-disorders-statistics
MLA
Ryan Townsend. "Mental Health Disorders Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/mental-health-disorders-statistics.
Chicago
Ryan Townsend. 2026. "Mental Health Disorders Statistics." Gitnux. https://gitnux.org/mental-health-disorders-statistics.
Sources & references
33 datasets cited across this report
+15 additional datasets cited (not shown individually)