The death rate among Caucasian Americans outstripped the birth rate in 17 states in 2014, compared to just four in 2004, the University of New Hampshire found.
While Latino, black and Asian populations continue to grow, soaring death rates among white middle-aged Americans - combined with the fact that white families are having less children - mean certain states are seeing falling Caucasian populations.
In 2011, poisonings overtook lung cancer as a leading cause of death in this group and suicides is poised to do so, Princeton researchers said Meanwhile, white, middle aged Americans have been bucking the national trend of decreasing death rates as two economists blamed increased competition with China for the rising number of deaths from suicides, drug and alcohol poisoning.
They estimate that had the white mortality in the US rate held at its 1998 value, 96,000 lives would have been saved between 1998 and 2013.
The graph shows all-cause mortality for those aged 45 to 54 for US white, non-Hispanics (USW) and US Hispanics (USH), compared with six other rich nations, France, Germany, the UK, Canada, Australia and Sweden.