About 20% of over 65 are working in the US and UK
by brian wang from NextBigFuture.com on (#2QZR4)
In May, 18.8% of Americans ages 65 and older, or nearly 9 million people, reported being employed full- or part-time, continuing a steady increase that dates to at least 2000 (which is as far back as we took our analysis). In May of that year, just 12.8% of 65-and-older Americans, or about 4 million people, said they were working.
This is also the case in the UK where over 20% of those over the age of 65 continue to work.