3.8% of persons age 50-61 in the top 25% of income earners lived alone in 2000.

6.1% of persons age 62-74 in the top 25% of income earners lived alone in 2000.

7% of persons age 75 and above in the top 25% of income earners lived alone in 2000.

AARP. (2002, May).  Beyond 50: summary tables and charts. Research report. (Table: Core indicators by age & income data). Washington, DC: Gist, J., Figueiredo, C., & Ng-Baumhackl, M. Retrieved July 15, 2005, from http://www.aarp.org/research/reference/statistics/aresearch-import-298.html

"Through its analysis of both the status quo and developing trends, Beyond 50: A Report to the Nation on Economic Security provides readers with an in-depth look at the well-being of more than one-quarter of Americans - the 76 million people age 50 and older in 2000."