Approximately 727,000 people die by suicide every year worldwide, which works out to roughly one death every 43 seconds. In the United States alone, the total exceeded 48,000 deaths in 2024 based on CDC injury data, making suicide one of the leading causes of death in the country. These numbers, while staggering, likely undercount the true toll.
Global Suicide Numbers
The World Health Organization puts the annual global figure at around 727,000 deaths. The Institute for Health Metrics and Evaluation, which uses slightly different modeling, estimates closer to 740,000. Either way, suicide kills more people each year than malaria, breast cancer, or homicide. The global mortality rate sits at roughly 9 per 100,000 people, though this average masks enormous variation between countries and regions.
Low- and middle-income countries account for more than three-quarters of global suicides. Part of this reflects population size, but access to mental health care, economic instability, and the availability of lethal means all play a role. Some of the highest national rates are found in parts of Africa, Southeast Asia, and Eastern Europe, while many Mediterranean and Middle Eastern countries report rates well below the global average.
Suicide in the United States
The U.S. consistently ranks among the higher-rate high-income countries. CDC data for 2024 recorded more than 48,800 suicide deaths across all methods. Firearms accounted for the largest share by far, with 27,593 deaths. Suffocation (which includes hanging) was the second most common method at 11,453 deaths, followed by drug poisoning at 4,409.
The economic cost is enormous. Using CDC estimates in 2021 dollars, fatal suicides in 2024 carried a combined cost exceeding $500 billion when factoring in medical expenses and the statistical value of lost life. Firearm suicides alone represented over $273 billion of that total. These figures don’t include the cost of nonfatal suicide attempts, which number in the hundreds of thousands each year and generate significant emergency and long-term care expenses.
Who Is Most Affected
Men die by suicide at more than twice the rate women do. Globally, the mortality rate is 12.8 per 100,000 for males compared to 5.4 per 100,000 for females. This gap isn’t because men attempt suicide more often. In high-income North America, one in every 6.3 male suicide attempts results in death, compared to one in 30.7 for females. Men tend to use more immediately lethal methods, particularly firearms, which largely explains the difference in outcomes.
Age patterns may surprise you. In the U.S., people aged 85 and older have the highest suicide rate of any age group. Middle-aged adults (particularly men between 45 and 64) also face elevated risk. While suicide among young people between 15 and 24 generates significant public attention, the crude rate for that age group (13.5 per 100,000 in 2023) is actually lower than the rates seen in older populations. That said, suicide is the second or third leading cause of death for young people, simply because they die of fewer other causes.
The True Numbers Are Likely Higher
Every major estimate comes with a caveat: suicide is almost certainly undercounted. The classification process varies widely between jurisdictions, and many suspected suicides end up recorded as accidental deaths or deaths of “undetermined intent.” Social stigma plays a role. Medical examiners and coroners may hesitate to classify a death as suicide when the evidence is ambiguous, particularly in cases involving drug overdoses where intent is difficult to establish.
Research into this classification problem suggests the gap could be substantial. One approach used by researchers in the U.S. adds 80% of accidental opioid and drug poisoning deaths and 90% of undetermined-intent drug deaths to the official suicide count, based on the demographic and clinical similarities between these groups. Studies comparing people who died by suicide, accidental overdose, and undetermined causes have found that all three groups showed similar rates of mental illness and psychiatric symptoms, reinforcing the idea that many deaths in the latter two categories were likely suicides that went unrecognized or unrecorded.
In countries with weaker vital registration systems, undercounting is even more pronounced. Some nations lack consistent death reporting infrastructure entirely, meaning their contributions to the global total are based on statistical modeling rather than actual case records.
Suicide Attempts Far Outnumber Deaths
For every person who dies by suicide, many more survive an attempt. Global estimates suggest that for each death, there are roughly 20 to 30 attempts, though this ratio varies by age, sex, and method. In the U.S., emergency departments treat hundreds of thousands of people for self-harm injuries annually. Women attempt suicide at higher rates than men, but men’s attempts are more frequently fatal due to the methods chosen.
This distinction matters because it shapes how the problem looks depending on what you measure. If you count deaths, suicide appears predominantly male and skews older. If you count attempts, the picture shifts toward younger people and women. Both perspectives are necessary to understand the full scope.