Several reports in the news media warned of double digit premium increases in health insurance marketplace plans for 2016. We examine premium increases for insurers’ lowest cost silver (70 percent actuarial value) plans in 63 regions in 20 states plus the District of Columbia. We find the average premium increase in these regions to be 4.3 percent, compared to 2.9 percent for all US regions in 2015. In six of these states plus the District of Columbia, insurers’ lowest silver premiums fell on average in 2016. The four study states facing large increases had 2015 premiums below the national average.