More than 118,000 residents in South Carolina bought health insurance through the Affordable Care Act marketplace between October and mid-April, a new federal report shows.

And even though South Carolina is one of several states not expanding its Medicaid program under Obamacare, the federal government estimates this state's Medicaid roster grew anyway, by nearly 54,000 people during those same six months.

The U.S. Department of Health and Human Services released state-by-state Affordable Care Act enrollment data on Thursday.

Across the country, 8 million people signed up for an insurance policy through the federal marketplace or a state-based marketplace. An additional 4.8 million enrolled in Medicaid and the Children's Health Insurance Program.

"Together we are ensuring that health coverage is more accessible than ever before, which is important for families, for businesses and for the nation's health and wellbeing," said outgoing Health and Human Services Secretary Kathleen Sebelius, in a prepared statement accompanying the report.

The enrollment data released Thursday for South Carolina customers is very similar to the data already made public in mid-April by the S.C. Department of Insurance.

The federal report does not indicate how many customers have paid their first month's premium - a requirement for enrollment. In mid-April, S.C. Insurance Director Ray Farmer said about 67,000 of an estimated 115,000 customers had paid.

The federal report shows 57 percent of insurance customers shopping on the exchange in South Carolina were female. The vast majority - 88 percent - qualified for financial assistance to pay for a policy. Almost 50 percent of South Carolina customers were 45-64 years old.

Enrollment for 2015 health insurance plans reopens in November.

Reach Lauren Sausser at 937-5598.