Although the average American is living an impressive 30 years longer than 100 years ago — about 79.8 — by global standards, the U.S. still remains middle-of-the-road despite its great wealth; typically, we’re in the mid-thirties, usually along the same level as Cuba, Chile, or Costa Rica. Furthermore, life expectancy varies wildly from state to state, as the following map from The Atlantic clearly shows:
There’s profound variation by state, from a low of 75 years in Mississippi to a high of 81.3 in Hawaii. Mostly, we resemble tiny, equatorial hamlets like Kuwait and Barbados. At our worst, we look more like Malaysia or Oman, and at our best, like the United Kingdom. No state approaches the life expectancies of most European countries or some Asian ones. Icelandic people can expect to live a long 83.3 years, and that’s nothing compared to the Japanese, who live well beyond 84.
Life expectancy can be causal, a factor of diet, environment, medical care, and education. But it can also be recursive: People who are chronically sick are less likely to become wealthy, and thus less likely to live in affluent areas and have access to the great doctors and Whole-Foods kale that would have helped them live longer.
It’s worth noting that the life expectancy for certain groups within the U.S. can be much higher—or lower—than the norm. The life expectancy for African Americans is, on average, 3.8 years shorter than that of whites. Detroit has a life expectancy of just 77.6 years, but that city’s Asian Americans can expect to live 89.3 years.
But overall, the map reflects what we’d expect: People in southern states, which generally have lower incomes and higher obesity rates, tend to die sooner, and healthier, richer states tend to foster longevity.
It’s also worth adding that overall, the U.S. is far less healthy and long-lived than it should be, even when you adjust for wealth, race, and other factors (e.g. young Americans are less healthy than young people in other developed countries, rich people are typically less healthy than other rich non-Americans, etc).