401(k)s are a negligible source of income for seniors: Average annual 401(k) and pension income for Americans age 65 and older by income quintile, 2014

Distributions from 401(k)s, IRAs and similar accounts Pension benefits
Bottom 20% $35 $95
Second 20% $77 $422
Middle 20% $273 $2,116
Fourth 20% $950 $8,105
Top 20% $3,251 $18,527

Source: EPI analysis of 2015 Current Population Survey Annual Social and Economic Supplement microdata (IPUMS-CPS, University of Minnesota, www.ipums.org). Pension income includes survivor benefits. Amounts shown slightly understate total amounts reported due to top-coding of high incomes for privacy reasons and because only the top two sources of retirement income and survivor benefits are identified (Social Security and veterans benefits are reported separately).

View the underlying data on epi.org.