States that have fully embraced the Affordable Care Act have seen the most reductions in uninsured residents, according to a Gallup poll. According to the poll, the 10 states with the largest declines in uninsured rates both expanded Medicaid and established their own health insurance exchanges.
Arkansas' uninsured rate dropped by more than 10 percentage points, from 22.5 percent in 2013 to 12.4 percent and Kentucky saw its uninsured rate drop by almost nine percentage points, from 20.4 percent in 2013 to 11.9 percent in 2014. In comparison, the survey found that neighboring state Tennessee, which did not expand Medicaid or set up its own exchange, experienced a 2.4 percentage point drop in its uninsured rate.
Overall, the poll stated that the country's uninsured rate dropped from a peak of 18 percent in the third quarter of 2013 to 13.4 percent by the second quarter of 2014.