16. Indiana
> Ppt change in uninsured rate, 2012-2015: -3.6
> Expanded Medicaid?: yes
> Pct. population without health insurance, 2012: 14.3% (22nd highest)
> Pct. population without health insurance, 2015: 10.7% (13th highest)

Nearly 1 million Indiana residents did not have health insurance in 2012, or 14.3% of the state’s population. As of March 2015, since Obamacare was implemented, that percentage had dropped by 3.6 percentage points, a smaller drop than the comparable national decline of 5.7 percentage points over that period.

Though Indiana did not establish its own state exchange, the federal government-run healthcare.gov helped more than 200,000 state residents purchase health insurance. The state did expand Medicaid, however, providing coverage for those making at or less than 138% of the federal poverty level.

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17. Louisiana
> Ppt change in uninsured rate, 2012-2015: -3.9
> Expanded Medicaid?: no
> Pct. population without health insurance, 2012: 16.9% (12th highest)
> Pct. population without health insurance, 2015: 13.0% (5th highest)

In 2012, before the state’s Health Insurance Marketplace open enrollment period began, 759,627 Louisiana residents, or 16.9% of the population, did not have health insurance. Since then, the share of the uninsured population has fallen 3.9 percentage points to 13%, the fifth highest uninsured rate in the country. So far, the state government has not opted to expand Medicaid. If it does, 265,000 more people would be covered, and the uninsured rate would fall to 7.2%. The cost of health insurance is relatively high in Louisiana. The average monthly premium for a 40-year-old, nonsmoking man in the state in 2015 was $274, the 10th highest of any state.

18. New York
> Ppt change in uninsured rate, 2012-2015: -3.9
> Expanded Medicaid?: yes
> Pct. population without health insurance, 2012: 10.9% (14th lowest)
> Pct. population without health insurance, 2015: 7.0% (22nd lowest)

More than 2.1 million New York residents did not have health insurance in 2012, or 10.9% of the state’s population. As of March 2015, since the Affordable Care Act was implemented, that percentage had dropped by 3.9 percentage points — the 18th smallest drop in the country.

New York was one of a minority of states to set up its own health insurance exchange marketplace. During the designated open enrollment period, uninsured New Yorkers can go to the New York State of Health’s website to purchase coverage. All state-run exchanges were expected to be financially self-sustaining by this year. As part of the state’s 2015-2016 budget plan, Governor Andrew Cuomo announced a new tax on health insurance premiums to help fund the exchange.

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19. Alabama
> Ppt change in uninsured rate, 2012-2015: -3.9
> Expanded Medicaid?: no
> Pct. population without health insurance, 2012: 13.3% (24th lowest)
> Pct. population without health insurance, 2015: 9.4% (18th highest)

In 2012, before the Health Insurance Marketplace open enrollment period began, 632,499 Alabama residents, or 13.3% of the population, did not have health insurance. Since then, the uninsured rate fell by 3.9 percentage points to 9.4%, slightly higher than the 9.1% of Americans who are currently uninsured.

Unlike most states, Alabama did not expand Medicaid under the ACA. Such an expansion would have likely helped a number of low-income residents obtain health insurance — 18.7% of Alabamians lived in poverty, the seventh highest rate nationwide. According to the U.S. government, expanding Medicaid would provide an additional 235,000 Alabama residents health coverage and lower the uninsured rate to 4.5%.

20. Virginia
> Ppt change in uninsured rate, 2012-2015: -4.1
> Expanded Medicaid?: no
> Pct. population without health insurance, 2012: 12.5% (20th lowest)
> Pct. population without health insurance, 2015: 8.4% (24th highest)

In 2012, before the federal health insurance exchange open enrollment period began, 12.5% of the population did not have health insurance. Over the next three years, the rate of the uninsured population dropped 4.1 percentage points to 8.4%. In contrast, the percentage of Americans without health insurance dropped 5.7 percentage points over that period.

The state’s uninsured rate would drop further if Virginia opts to expand Medicaid coverage to those with incomes less than 138% of the poverty level. According to the HHS, an additional 210,000 Virginians would be covered if the state takes advantage of the federal funds for the expansion, lowering the uninsured rate to 5.8%.