Nonelderly Uninsured
by Citizenship Status, 2005; more than one in five uninsured people under age 65 are not U.S. citizens. Of these, only a small fraction are believed to be undocumented (“illegal”). Non U.S. citizens are almost three-and-a-half times more likely to be uninsured as U.S. citizens, chiefly because their incomes are more likely to be low.