Population density doesn't account for geography and infrastructure (roads). That's the healthcare delivery hotspot. Is there a map for that?

Further, culture determines willingness to USE available healthcare. Southerners have a culture of independence. Men are reluctant to complain about health anyway; compound that with stubbornness and phobias about large institutions.

You can even argue its not a Problem than some folks have lower life expectancies; they chose that lifestyle. God bless America, they're allowed to do that.