"About 1 in 10 workers who worked exclusively from home were over the age of 65 in 2010," according to a 2012 analysis of US Census Bureau's American Community Survey.
Mateyka, P. J., Rapino, M. A., & Landivar , L. C. (2012). Home-based workers in the United States: 2010. (Current Population Reports No. P70-132). Washington, DC: U. S. Census Bureau. Retrieved from www.census.gov.