The Leading Causes of Accidental Death in the U.S.

Posted on May 10, 2026

“Accidents happen.” That’s a phrase most people hear throughout their lives — although typically it applies to the unavoidable mistakes and mishaps that may affect a small part of your life. However, sometimes the term “accidents” can mean something much more serious, like an unintentional injury or death. According to the CDC, unintentional deaths are the third most common cause of death. While still accidents, unintentional deaths bring a new meaning to the word “accident.” 

With this in mind and our mission to serve those who suffer from mistakes, we decided to take a deeper look into the leading cause of accidental deaths in the U.S. and how often they occur.

Types of Accidental Deaths

Accidental deaths can occur in many unexpected ways, and understanding these types of accidental deaths helps highlight how common and preventable many are. The most frequent accidental death causes include unintentional poisoning (such as drug overdoses), motor vehicle crashes, falls, drowning, and suffocation. Each of these incidents contributes to thousands of fatalities every year across the United States.

While the leading cause of accidental deaths in the U.S. often varies by age group and region, unintentional poisoning has become the most prevalent nationwide. Recognizing these patterns allows individuals and communities to take safety precautions and reduce risk before tragedy strikes.

How We Collected Accidental Fatalities Data

To collect our data, we analyzed CDC Wonder data for unintentional deaths by state over the last five years. We analyzed two age groups: ages 1 through 14 and ages 15 and older. For ages 1 through 14, we were able to collect data on unintentional drowning rates by state. For ages 15 and older, we collected data on the leading cause of unintentional death per state as well as unintentional death rates by poisoning and motor vehicle accidents in each state, two of the leading causes.

Using this data, we created a series of graphics that illustrate the leading causes of accidental deaths in the U.S. These visuals highlight various types of accidental deaths and how their rates differ across the country. Take a look at the graphics below to see what we found.

Most Common Accidental Deaths in the U.S.

To begin, we created a map that shows the leading causes of accidental deaths in America by each state. Between motor vehicle traffic, poisoning, and falling, unintentional poisoning was the leading cause in 29 out of 50 states. Motor vehicle traffic was the leading cause of unintentional deaths in 11 out of 50 states, and falling was the leading cause of unintentional death in 10 states.

We also examined the rates of unintentional poisoning deaths in each state for people aged 15 and older — one of the leading causes of accidental deaths in the U.S. West Virginia had the highest rate, with 47.4 deaths per 100,000 people. Neighboring states such as Ohio (36.3), Kentucky (33.6), and Pennsylvania (33) also experienced high death rates. The ongoing opioid crisis in this region likely contributes to these tragic statistics, as many people suffer fatal unintentional overdoses — a major accidental death cause nationwide.

The next cause of unintentional death we looked as was motor vehicle deaths for people over the age of 15. The state with the highest rate is Mississippi, with an unintentional motor vehicle death rate of 28.5 deaths per 100,000 people. Mississippi drivers are more likely to take risks associated with driving under the influence, which potentially contributes to the problem. Alabama and South Carolina follow Mississippi with rates of 23.6 and 22.5 deaths per 100,000 people respectively. Other states that had high rates of unintentional motor vehicle death were Wyoming, Oklahoma, New Mexico, and Montana.

The last piece of data that we collected is the unintentional drowning death rate by state for people aged 1 through 14. Louisiana has the highest rate of unintentional drowning deaths in children with 2.59 deaths (per 100,000 people). This rate is even worse for young children aged 1 through 4, where the rate of accidental drowning is over double the national rate. Florida, which is almost completely surrounded by water, has the second highest rate of accidental drowning in children — 2.44 deaths per 100,000 people. After Louisiana and Florida, the states with the next highest unintentional drowning death rates in children are Alaska (2.20) and Oklahoma (2.14).

Recent Accidental Death Trends in the United States

Originally published in 2023. Updated to reflect the most recent available data.

Recent data from the Centers for Disease Control and Prevention (CDC) shows that unintentional injuries continue to rank among the leading causes of death in the United States, with trends evolving across major categories.

According to the latest available CDC WISQARS data, accidental deaths have remained consistently high through 2024. Drug overdoses continue to be the leading cause of preventable death, maintaining their position despite signs of slowing growth in more recent provisional estimates.

Falls remain another major contributor, particularly among older adults. Long-term trends show a steady increase in fall-related deaths, reflecting both an aging population and heightened vulnerability to injury.

Motor vehicle crashes also remain a leading cause of accidental death. While fatalities increased earlier in the decade, more recent data suggest some stabilization, though levels are still elevated compared to pre-2020 figures.

Overall, the most recent data highlights a clear pattern. While certain categories show signs of leveling off, unintentional injuries continue to represent a significant and persistent public health issue in the United States.

If you or someone you love has been affected by the consequences of an accidental death, don’t hesitate to seek or offer support. Whether the loss was due to one of the most common accidental deaths, such as poisoning, falls, or car accidents, there are many resources available to help you cope and heal after such a tragedy.

At Weiss & Paarz, we are dedicated to helping victims of medical malpractice seek justice after preventable medical errors. If you are located in Philadelphia, you can learn more about our approach by visiting our medical malpractice Philidelphia page.

Accidental Death Data Disclaimer

The information and specific statistics displayed above are solely designed to provide general knowledge to the public and are being used as a part of attorney marketing. Cited statistics and statements were taken from research of various independent websites (referenced above). Weiss & Paarz did not take any steps to replicate the findings of any sources used in this infographic, nor were the numbers or results displayed above independently verified by Weiss & Paarz.