Number of uninsured Americans declines

The number of uninsured declined to 28.3 million in the first quarter, down from 29.3 last year -- and 48.6 million in 2010.

Almost a quarter of adults in south central states — Arkansas, Louisiana, Oklahoma and Texas — lack health care coverage. (Photo: Shutterstock)

Fewer Americans lack health insurance — but the gap remains wide, especially in some pro-Trump states.

The number of uninsured declined to 28.3 million in the first quarter, down from 29.3 last year — and 48.6 million in 2010, the year the Affordable Care Act was signed into law by then-President Barack Obama, according to data from the federal Centers for Disease Control and Prevention.

Related: High deductibles blur line between insured and uninsured

The distribution, however, is uneven with data for south central states — Arkansas, Louisiana, Oklahoma and Texas — showing almost a quarter of adults lacking health care coverage. President Donald Trump, who has opposed Obamacare, won those four states in the 2016 presidential election.

The CDC data also show:

The first-quarter estimates are based on data covering 19,510 people.

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