The National Highway Traffic Safety Administration (NHTSA) estimates that 35,200 people died in motor vehicle accidents in 2015, a 7.7 percent increase from 2014. This increase is a result of a combination of a 3.5 percent increase in vehicle miles of travel plus a 4.1 percent increase in fatalities per billion miles traveled.
The 32,500 number is a “statistical projection,” not an exact count, which won’t be available until this fall. NHTSA’s previous statistical projections have been fairly accurate; the estimate for 2014 turned out to match the final number exactly, while the average for the previous six years was off by only 26. The worst was in 2012, when the projection was 298 too high.
According to NHTSA’s estimate, fatalities increased the most in the Northwest (Alaska, Idaho, Montana, Oregon, and Washington), with a 20 percent gain. Fatalities declined 1 percent in the South Central region (Louisiana, Mississippi, New Mexico, Oklahoma, Texas), while they grew from 4 to 10 percent in the rest of the country.