In the three states with the highest uninsured population, the benchmark plan will average $373 in California, $305 in Texas, and $328 in Florida. Differences between states can be due to the number of insurers competing and other factors.
"One surprise is Texas," said Larry Levitt of the Kaiser Family Foundation. "That is a state that has put up roadblocks to implementation, but the premiums there are below average."
The second-lowest-cost silver plan is important because tax credits are keyed to its cost in local areas.
But consumers don't have to take silver. They can pick from four levels of coverage, from bronze to platinum. All the plans cover the same benefits and cap annual out-of-pocket expenses at $6,350 for an individual, $12,700 for families.
The big difference is cost sharing through annual deductibles and copayments. Bronze covers 60 percent of expected costs; silver, 70 percent, on up to platinum at 90 percent. Bronze plans have the lowest premiums and the highest cost sharing.
As the Avalere study showed, premiums aren't the only factor consumers should weigh.
The flurry of new reports comes as the White House swings into full campaign mode to promote the benefits of the Affordable Care Act to a skeptical public. Congressional Republicans, meanwhile, refuse to abandon their quest to derail "Obamacare" and are flirting with a government shutdown to force the issue.
Starting Jan. 1, virtually all Americans will be required to carry health insurance or face fines. At the same time, the health care law will prohibit insurance companies from turning away people in poor health, or charging them more.