Using data from the American Community Survey (ACS), this brief finds that relatively few children ages 3 and younger were uninsured in 2015 nationally and in most states, and the Affordable Care Act (ACA) was associated with increased coverage among both young children and their parents. However, 13.2 percent of the parents of young children were uninsured, higher than among parents of older children. Furthermore, nearly half of children ages 3 and younger – and over a fifth of their parents – were covered by Medicaid/CHIP in 2015; therefore, Medicaid/CHIP policy changes would have outsize effects on these families.

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