Number of Americans without insurance shows first increase since 2008

The number of Americans without health insurance climbed to 27.5 million in 2018. The 27.5 million people without health coverage represents 8.5% of Americans, up from 7.9%, or 25.6 million people, in 2017, according to the Census Bureau.

The ACA made strides in reducing the number of uninsured in large part through the expansion of Medicaid. Enrollment in Medicaid rose by 14.7 million people between 2013 and 2019. 

Among adults aged 19 to 64, the population aged 19 to 25 was among the most likely to be uninsured, according to the census data. That demographic had an uninsured rate of 14.3%.