https://simple.wikipedia.org/wiki/List_of_U.S._states_by_pop...
I didnt bother to run any kind of correlation, but eyeballing states by suicide rates seems to correlate best with population density.
The states that I associate with materialism seem to be the lowest on the scale of suicide rates but are more rural.
Alternately older white men overwhelm all other groups for suicide. So what is being measured is the concentration of older white men.