More than half of the 1.3 million Americans who are 65 or older will retire before the end of their careers, according to the U.S. Census Bureau.
The trend will be particularly dramatic among younger generations.
About 43 percent of older adults who will retire will be between the ages of 65 and 74, and about 35 percent of those aged 65 to 74 will be over 75, according the Bureau of Labor Statistics.
Older Americans have a much higher unemployment rate than younger Americans, and they have higher rates of health problems and chronic diseases.
About 18 percent of Americans 65 and older are dependent on Social Security, the retirement program for the disabled and elderly.
The retirement age is determined by Congress based on a formula based on age, years of employment, and other factors.
The government then sets a retirement age based on how many years you can expect to work.
The median age at retirement is age 67.
It is the first time since World War II that the median age has been higher than 70.
In a survey last year, a majority of seniors said they expected to work for longer than they have in the past.
About 80 percent of seniors were looking for work.
Among the other things, about half of seniors are planning to get a second job.
And the majority of those older than 65 plan to live longer than the average U.K. worker.
The Census Bureau says more than 2.4 million people aged 65 and over have plans to retire, and more than 4.2 million of those seniors are expecting to retire.
About 70 percent of them have a retirement plan.
About 70 percent are expecting a second career, according for the Census Bureau, while nearly one-quarter of seniors plan to work part-time or less.
About 7 percent of people aged 75 and older said they are planning on retiring, according.
They expect to have more children than in the previous survey, and expect to spend more money on health care.
About 14 percent of adults aged 75 or older plan to have two or more children.
About 12 percent of women and 5 percent of men are planning a second child.
More than half (53 percent) of those 65 and more have no plans to work after retirement, and nearly half (47 percent) have no plan to retire and one child.
About 8 percent of the older population plan to stay in their current jobs for at least 15 years.
About 5 percent plan to keep their current job for more than 20 years.
About 13 percent of retirees expect to get married and have children.
About 12 percent said they have plans for children, and 17 percent said their plans include a second spouse.