Montana has the highest rate of speeding-related traffic deaths per capita in the United States, underscoring a reality that runs counter to how most people think about dangerous driving, according to a new study by Siegfried and Jensen. 

While speeding is often associated with crowded urban highways and aggressive commuters, the greatest danger appears to exist on long, open rural roads where higher speed limits, lighter traffic, and longer emergency response times can turn a single mistake into a deadly crash.

Speeding claimed 11,288 lives across the country in 2024, making it the second-leading cause of fatal crashes behind only alcohol-impaired driving. It was a contributing factor in roughly 29% of all traffic fatalities, meaning nearly one out of every three people killed on American roads died in a crash where speed played a role.

A new analysis by Siegfried & Jensen ranked states by speeding deaths after adjusting for population. Montana finished first, followed by South Carolina, Wyoming, New Mexico, and North Carolina. Many of these states have similar characteristics, including vast stretches of rural highway, relatively high posted speed limits, and significant distances between towns, hospitals, and emergency responders.

The findings challenge the conventional wisdom that speeding is primarily an urban problem driven by congestion or road rage. Instead, the data suggests rural highways may be even more dangerous. Drivers often feel comfortable traveling well above the speed limit on open roads, but when crashes occur at those speeds, the consequences are far more severe. With fewer barriers, longer response times, and higher impact forces, accidents that might be survivable elsewhere are much more likely to become fatal.

There is also a seasonal pattern to these crashes. Fatal speeding accidents climb sharply during the warmer months, with May, June, and September each recording close to 1,000 deadly crashes involving excessive speed. The trend remains elevated throughout late summer and into early fall, suggesting increased travel, vacations, and heavier highway traffic all contribute to the higher death toll.

Despite decades of public awareness campaigns, stricter enforcement, and tougher penalties, speeding remains one of the nation's deadliest driving behaviors. Unlike some other traffic risks that have gradually improved through advances in vehicle safety technology, excessive speed continues to claim more than 11,000 lives every year.

The report also notes that speeding's true role in fatal crashes is likely even larger than official statistics indicate. A crash is only classified as speeding-related when investigators determine a driver was speeding, racing, or traveling too fast for road or weather conditions. In many serious collisions, speed may contribute to the outcome without ever being officially recorded as the primary cause.

The broader findings suggest geography plays an enormous role in roadway safety. While the country's largest states record the highest raw number of traffic fatalities, smaller and more rural states consistently post the highest death rates after adjusting for population. Long travel distances, limited transportation alternatives, and high-speed rural roads appear to create a particularly dangerous combination.

The analysis serves as another reminder that speeding is far more than a traffic violation. It remains one of the leading causes of preventable deaths in the United States, and the places where drivers feel safest putting their foot down may ultimately be where the risks are greatest.