10.8% (over 5.1 million) of adults with a mental illness remain uninsured.
The rankings for this indicator used data from the 2017-2018 NSDUH. In December 2017, Congress passed the Tax Cuts and Jobs Act, which eliminated the individual mandate penalty from the ACA.
There was a 0.5% increase from last year's dataset, the first time this indicator has increased since the passage of the ACA.
The increase in this indicator is consistent with data from the U.S. Census Bureau, which found that in 2018, the rate of uninsured Americans rose for the first time since the ACA took effect.
Only twenty states saw a reduction in Adults with AMI who are uninsured in this year's dataset. The largest reductions were seen in Louisiana (5.0%), South Dakota (3.3%), Kentucky (2.4%) and Kansas (2.2%). The largest increases were seen in Iowa (5.1%), Mississippi (3.9%), Arkansas (3.7%) and Missouri (3.2%).
The state prevalence of uninsured adults with mental illness ranges from 2.5% in the District of Columbia to 23.0% in Wyoming.