Which US State Has the Most Car Accidents? 2024 Deaths, Rates and Rankings

Quick answer: By raw numbers, Texas had the most motor vehicle crash deaths in the United States in 2024: 4,160, ahead of California (3,876) and Florida (3,138). By risk per person, the deadliest state is Mississippi at 25.6 deaths per 100,000 residents, more than five times the rate of the safest state, Rhode Island (4.7). Nationally, 39,254 people died on US roads in 2024, a rate of 11.5 per 100,000 people and 1.19 per 100 million vehicle miles. These are official NHTSA FARS figures as tabulated by IIHS, and every state has its own live page on our car accidents by state hub.

Two different questions: most crashes vs. most dangerous

"Most car accidents" can mean two things, and the answers point to different states.

• Most deaths in total is mostly a function of population and miles driven. The big three are always Texas, California and Florida; together they account for roughly 28% of all US crash deaths. North Carolina (1,619), Georgia (1,403) and Arizona (1,229) follow.
• Most dangerous per person is the number that tells you about the roads themselves. Here the South and the rural West dominate: Mississippi (25.6), Arkansas (19.5), New Mexico (19.2), South Carolina (18.9), Alabama (18.7) and Wyoming (18.2).

California is the clearest illustration of the gap. It is second in total deaths, yet its rate of 9.8 per 100,000 is below the national average and ranks only 34th of 51. Texas, by contrast, is above average on both measures: 4,160 deaths and 13.3 per 100,000.

The 10 deadliest states per 100,000 people (2024)

• #1 Mississippi — 25.6 (753 deaths)
• #2 Arkansas — 19.5 (603)
• #3 New Mexico — 19.2 (409)
• #4 South Carolina — 18.9 (1,038)
• #5 Alabama — 18.7 (962)
• #6 Wyoming — 18.2 (107)
• Then Arizona (16.2), and the rest of the Deep South and Mountain West. Full table on the state rankings page.

Notice that Wyoming makes the top ten with only 107 deaths. A small population and long, fast, empty highways produce a high rate from a low count. The per-person figure is the one to use when comparing where it is dangerous to drive, not the headline total.

The safest states

The lowest rates are all dense, urban, transit-heavy states: Rhode Island (4.7), Massachusetts (5.1), New York (5.5), the District of Columbia (6.7), Hawaii and New Jersey (7.1). Shorter trips, lower speeds, congestion and strong seat-belt enforcement all push the number down. New York's 1,101 deaths sound like a lot until you divide by 19.9 million residents.

Deaths per 100 million miles: the fairest comparison

Because rural states simply drive more miles per person, IIHS also publishes deaths per 100 million vehicle miles travelled. On that measure Mississippi still leads (1.81), followed by Arizona (1.74), South Carolina (1.67) and Arkansas (1.53), against a national 1.19. Texas is 1.35 and California exactly the national average at 1.19. When a state is at the top on both per-person and per-mile rates, as Mississippi and South Carolina are, the problem is the driving, not the distances.

What is killing people: speed, pedestrians, motorcycles

The same FARS tables break deaths down by cause and road user, and the patterns differ sharply by state.

• Speeding was a factor in 54% of crash deaths in Vermont, 50% in Alaska, 43% in Montana and 42% in North Carolina and Hawaii. In Mississippi, the deadliest state overall, speeding accounts for a comparatively modest 17%; its problem is more about rural roads and seat-belt use.
• Pedestrians make up 38% of deaths in the District of Columbia, 34% in Hawaii, 31% in New Jersey, 28% in California and 26% in Nevada. Dense states have fewer deaths overall but a much larger share of them on foot.
• Motorcyclists are a quarter of all crash deaths in New Hampshire (26%), Hawaii (25%), Connecticut and Colorado (24%).

Each state page shows these three percentages next to the live accident reports, so you can see, for example, that Texas sits at 36% speeding-related and 18% pedestrian, while California is 29% and 28%.

How this compares with the rest of the world

The US rate of 11.5 per 100,000 is roughly double that of Canada, the United Kingdom, Germany or Australia, and about the same as Pakistan's WHO-estimated rate. Mississippi's 25.6 would rank among the higher-risk countries on our most dangerous countries to drive list. The long-term US trend is on the US road deaths by year page.

Where the numbers come from

All figures are 2024 data from NHTSA's Fatality Analysis Reporting System (FARS), the census of every fatal crash on a US public road, as published in the IIHS state-by-state tables. Population is the Census Bureau estimate; vehicle miles come from the Federal Highway Administration. Rates are deaths per 100,000 residents and per 100 million vehicle miles. Live crash headlines on the state pages come from news monitoring refreshed every 15 minutes and are separate from the official statistics.

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