It also is the smallest increase since 2008, when premiums increased an average of 2.1%, according to OPM.
The 3.4% average premium increase is in line with the 4% average premium increase in 2012 that the Kaiser Family Foundation found in a survey of more than 2,000 employers.
Federal officials attribute the easing of cost increases to several factors, including competition among insurers offering coverage in the federal program.
“I am pleased that we were able to keep the average increase low again this year,” OPM Director John Barry said in a statement. “Once again, we successfully used our market leverage and previous years’ experience to negotiate the lowest premium rates without sacrificing benefits.”
Next year, 230 health plans will be offered to federal employees and retirees. Many plans, though, operate only in specific geographic areas.
Federal employees can make their 2013 health plan selections between Nov. 12 and Dec. 10. On average, the federal government pays just over 70% of the premium.