While the number of people in the U.S. without health insurance has declined since the Affordable Care Act went into effect, 24 million Americans are still uninsured, a new Commonwealth Fund survey finds. According to the report, most of those who still lack coverage are Latino, make less than $16,000 a year, are under age 35, or work for a small business. And half live in one of the 20 states that had not yet expanded Medicaid at the time of the survey.A companion To the Point post explains that undocumented immigration status—which prevents people from participating in the ACA marketplaces—is likely a major reason why so many Latinos remain uninsured. See our ACA Tracking Survey dashboard to explore the data.