And in Nevada, 89,211 people have gone all the way through eligibility determinations and have not selected a plan. As in Kentucky, all of them are still eligible to complete enrollment. Nevada is also still collecting attestations from people who want to qualify for the special enrollment period.
HHS said more than 7 million people picked an ACA plan as of March 31. That number is likely to increase during the special extended enrollment, which varies from state to state.
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But what will really count, is how many of those people go ahead and pay their first premium.
In the 10 states that have released such data to CNBC, about 1.27 million people have paid. That includes California, where 85 percent of its more than 1 million enrollees have done so.
It's impossible to come up with an overall average rate of payment, as some states are now reporting only paid enrollments, including Washington (146,497), Vermont (48,780) and Massachusetts (29,534).
—By CNBC's Jodi Gralnick.