Distribution of Uninsured or Underinsured by Poverty, 2012 11% 5.1 million 37% 17.4 million 13% 6.2 million 15% 7.3 million 24% 11.3 million 47.3 million uninsured under age 65 in 2012 5% 1.7 mill- ion 50% 16.0 million 13% 4.1 million 18% 5.7 million 13% 4.2 million 31.7 million underinsured under age 65 in 2012 Notes: Percentages may not add to 100% because of rounding. Underinsured defined as insured in household that spent 10% or more of income on medical care (excluding premiums) or 5% or more if income under 200% poverty. Data source: March 2013 Current Population Survey.