Pic taken from roadway.report, an interactive map of all known roadway deaths in the USA.
Fatalities resulting from motor vehicle crashes are the third largest cause of accidental deaths in the United States. On average for 2024 there were over 100 deaths per day on US roads.
Having driven in a few of those red splotchy areas(FL TX), I can confirm the traffic is bad, but the drivers are insane. Running every stop light by 10 seconds plus, and every other bad driver habit. It’s not a surprise that those are high fatality areas. There was an intersection behind where I used to work. There was almost a daily crash from people running the red light.