
Vanguard reports average 401(k) balance of $50,261 for 25-34 year-olds; median is $18,732. Fidelity data shows similar figures. Fed survey adds context.
The average worker under 35 with a 401(k) had $50,261 in their account at the end of 2025, according to a Vanguard report. For those under 25, the average was $7,259.
Vanguard said the averages are skewed by a small number of high earners. The median balance – the midpoint of all account values – was $18,732 for the 25-to-34 age group and just $2,234 for those under 25.
Fidelity, another large retirement plan administrator, reported similar figures. Its data as of March 2026 showed the typical 20-to-24-year-old had $7,700 in their 401(k), while the average for 30-to-34-year-olds was $51,700. The 25-to-29 group held $26,600 on average, Fidelity said.
The Federal Reserve's 2022 Survey of Consumer Finances put total retirement savings (including IRAs and other accounts) for all under-35 households at a mean of $49,130 and a median of $18,880. That survey predates the Vanguard and Fidelity data, but the numbers are broadly consistent.
Northwestern Mutual's 2026 survey found that the average American believes they will need $1.46 million in today's dollars to retire comfortably. That figure is not a target for any specific age group, the insurer said, but a self-reported estimate from respondents of all ages.
The gap between the mean and median in every data set highlights how uneven retirement saving is among younger workers. Half of all under-35 savers have less than $19,000 in total retirement accounts, according to the Fed survey.
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