Estimates of the median household income on Long Island rose in 2016, to $105,870 in Nassau and $92,933 in Suffolk, while the percentage of Long Islanders who did not have health insurance fell and the percentage of Long Islanders living below the poverty line remained essentially flat. Those were all according to data from the U.S. Census Bureau’s American Community Survey released on Sept. 14, 2017. The charts below illustrate the three measures. The income figure is the point at which half the households have higher income and half have lower, and the figures going back to 2012 are adjusted for inflation. The national median is $59,059.