The United States is one of the richest countries in the world, but it would look dramatically different if its 50 states were organized according to income instead of geography. If that were the case, residents of the poorest state in the union would have a median household income that’s just above the federal poverty line for a family of four. They would also expect to live shorter lives than people in more than half of the world’s countries.
Source: The rich outlive the poor by up to 9.5 years in the United States, study says | The Star-Telegram