One quarter of 45-64 year olds provide unpaid eldercare.
“16% (40.4 million) of the civilian noninstitutional population age 15 and older provided unpaid eldercare over the 2013–14 period. People ages 45 to 64 were the most likely to provide eldercare (23%), followed by those age 65 and older (17%)”, according to a 2015 analysis of data from the American Time Use Survey.
* Eldercare providers are defined as people who provide unpaid care to someone age 65 or older who needs help because of a condition related to aging.
Bureau of Labor Statistics. (2015). 40.4 million people provided eldercare in 2013–14: The economics daily. Retrieved October 5, 2015, from http://www.bls.gov