Arizona will be hit the hardest when Obamacare premiums go up next year.

The Department of Health and Human Services revealed Monday that premiums for a midlevel benchmark plan will increase an average of 25 percent across the 39 states served by the federally run online market, and that about 1 in 5 consumers will have plans only from a single insurer to pick from, after major national carriers such as UnitedHealth Group, Humana and Aetna scaled back their roles.

However, in Arizona, unsubsidized premiums for a hypothetical 27-year-old buying a benchmark “second-lowest cost silver plan” will jump by 116 percent, from $196 to $422, according to the administration report.

But HHS said if that hypothetical consumer has a fairly modest income, making $25,000 a year, the subsidies would cover $280 of the new premium, and the consumer would pay $142. Caveat: if the consumer is making $30,000 or $40,000, his or her subsidy would be significantly lower.

Sen. John McCain, R-Ariz., called the Affordable Care Act a “failure.”

“Arizona families are demanding affordability, accessibility and choice when it comes to their health care – not the expensive, restrictive and poor quality care that has been forced upon them by Obamacare,” McCain said in a statement. “Until President Obama and Congressional Democrats wake up to the law’s failure, and until we repeal and replace it with solutions that encourage competition and put patients back in charge, the Washington-knows-best approach will continue to unfairly burden the Arizona families it was supposed to help.”