In the first nine months of 2016, just 28.2 million Americans, or 8.8 percent, were uninsured, according to survey data from the CDC. That’s 20.4 million fewer Americans than in 2010, when the ACA was signed into law, and 0.4 million fewer Americans than in 2015.
Source: http://www.beckershospitalreview.com/finance/us-uninsured-rate-hit-record-low-last-year-new-federal-data-show.html