But those officials also said they aren't worried about the 16 percent decrease in the total number of HealthCare.gov plans, because consumers will be able to choose from an average of 50 plans per county, a number that presents "robust" choice and competition. Officials also said that the average number of insurers per state will be close to 10, which is an increase in the average of nine for 2015 enrollment.
And, they said, almost 90 percent of HealthCare.gov customers would have three or more insurers to choose from, with the average customer having plans from five insurers to choose from.
"The marketplace is stable. Consumers continue to have affordable choice in 2016," said Richard Frank, assistant secretary of planning for planning and evaluation at the U.S. Health and Human Services Department (HHS).
HHS released a report Friday detailing data on health plan choices and premiums available on HealthCare.gov for 2016.
Also Friday, the Obama administration released full data files of all Obamacare plan prices for 2016. Those files will give a more complete picture of how prices are rising compared to this year.
The administration until Friday had talked only about the prices of so-called benchmark plans, a closely watched type of Obamacare plan that, on average, is increasing in price by 7.5 percent on average. The prices of benchmark plans help determine the subsidies for which most Obamacare customers qualify.