The Five Worst US Cities for Life Expectancy Among the Poor

Four of the five cities were in either Indiana or Oklahoma.

— -- Four of the five U.S. cities with the worst life expectancy among poor residents between 2001 and 2014 were in Indiana and Oklahoma, according to a new study that also examined why these residents were the most at risk.

The five cities where residents in the lowest income quartile had the shortest life expectancy included two cities each from Indiana and Oklahoma.

  • Gary, Indiana: 77.4 years
  • Las Vegas, Nevada: 77.6 years
  • Oklahoma City, Oklahoma: 77.6 years
  • Indianapolis, Indiana:77.6 years
  • Tulsa, Oklahoma:77.6 years
  • Study authors said it was difficult to pinpoint exactly why poor residents in these cities were more at risk than others. They found that the lower life expectancy did not correlate with access to medical care, pollution levels or poor "social cohesion" that could potentially cause stress.

    Instead, study authors speculate that poorer residents in cities with high levels of education and income have more resources than their counterparts in depressed cities.

    "Such areas may have public policies that improve health (e.g., smoking bans) or greater funding for public services, consistent with the higher levels of local government expenditures in these areas," the study authors said. "Low income individuals who live in high-income areas may also be influenced by living in the vicinity of other individuals who behave in healthier ways."

    The authors said more testing is needed to truly understand why poorer residents in certain cities had shorter a life expectancy.

    "The conversation we have about addressing those problems and improving access to education are important to recognize as relevant to our health," Woolf told ABC News today.

    "Education is not only known to be an important predictor of health outcomes but we live in an information economy," he said, explaining that for many people born into poverty, an education is the only way to escape it. "They have no realistic outlet without getting a good education that can open doors."

    In his editorial, Woolf explained that education could be used to align multiple sectors from law-enforcement to health care to media to encourage a change in public health care.