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401K Statistic Sources

  • Data obtained from the U.S. Census Bureau's Survey of Income and Program Participation (SIPP) 2014 SSA Supplement.
  • Bricker, Jesse, Lisa J. Dettling, Alice Henriques, Joanne W. Hsu, Kevin B.Moore, John Sabelhaus, Jeffrey Thompson, and Richard A.Windle. “Changes in U.S. Family Finances from 2013 to 2016: Evidence from the Survey of Consumer Finances.” Federal Reserve Bulletin, September 2017, Table 3.  The figures are for 2013 and include account balances from IRAs and Keogh plans and public and private employer-sponsored retirement plans.  Employer-sponsored plans include 401(k), 403(b) and thrift savings accounts from current and past employment.  The Survey of Consumer Finances uses the term “families,” rather than "households," but since the definition of "families" employed in the survey is comparable to the definition of "households" used in U.S. Census Bureau surveys, the term “households” is used here. 
  • Additional Information: 2016 SCF Chartbook, Median value of retirement accounts for families with holdings, Page 442.
  • U.S. Department of Labor, Bureau of Labor Statistics, “National Compensation Survey: Employee Benefits in the United States, March 2017,” March 2017, Private Industry Tables, Table 2.  Also: Civilian Workers, Table 2. The survey distinguishes between access to a retirement plan and participation in the plan. This figure includes full-time and part-time private sector workers with access to an employer sponsored 401(k), 403(b), profit-sharing, ESOP or money purchase plan. Workers are considered participating in a contributory plan, such as a 401(k), if either they or their employer contributed to the plan and they met the service requirement. All workers in noncontributory plans are counted as participating. 
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