Average 401(k) Balance by Age and Generation: The Complete Data
How does your 401(k) compare to others your age? We've compiled the most current retirement savings data from two authoritative sources: Fidelity Investments' Q4 2025 retirement analysis (covering 24.8 million 401(k) participants across 26,200 plans) and Vanguard's "How America Saves 2025" report (reflecting year-end 2024 data). Together, they provide the clearest available picture of where American retirement savers actually stand.
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Use the Retirement CalculatorAverage and Median 401(k) Balance by Age
The table below shows the average and median 401(k) balance by age group, based on Vanguard's "How America Saves 2025" report (year-end 2024 data, the most recent age-specific breakdown available).
| Age Group | Average Balance | Median Balance | Gap |
|---|---|---|---|
| Under 25 | $7,351 | $2,816 | 2.6x |
| 25-34 | $37,557 | $14,933 | 2.5x |
| 35-44 | $91,281 | $35,537 | 2.6x |
| 45-54 | $168,646 | $60,763 | 2.8x |
| 55-64 | $244,750 | $87,571 | 2.8x |
| 65+ | $272,588 | $88,488 | 3.1x |
| All Ages | $148,153 | $38,176 | 3.9x |
The gap between average and median is huge, and it gets wider with age. The overall median ($38,176) is nearly 4x lower than the average ($148,153. This means a small number of savers with very large balances are pulling the average up dramatically. The median is the more useful benchmark for most people: it tells you where the midpoint saver actually stands.
Average 401(k) Balance by Generation (Fidelity Q4 2025)
Fidelity's Q4 2025 analysis provides the most up-to-date generational snapshot, covering balances as of December 31, 2025.
| Generation | Birth Years | Avg 401(k) Balance | Avg Total Savings Rate |
|---|---|---|---|
| Gen Z | 1997-2012 | $13,500 | 11.1% |
| Millennials | 1981-1996 | $67,300 | 13.7% |
| Gen X | 1965-1980 | $222,100 | 15.4% |
| Baby Boomers | 1946-1964 | $270,800 | 14.5% |
| All Generations | $137,800 | 14.2% |
What stands out: Gen X is the only generation saving above Fidelity's recommended 15%. Gen Z is just getting started with an average of $13,500, which is actually a strong start given their age. Baby Boomers, despite having the largest average balance, are still well short of the $1.46 million that Americans say they need for a comfortable retirement (Northwestern Mutual, 2026 Planning & Progress Study).
The Power of Consistent Saving: Tenure Data
One of the most powerful statistics in the Fidelity data is how balances grow for people who save consistently in the same plan over time:
| Years of Continuous Saving | Average 401(k) Balance (Q4 2025) |
|---|---|
| 5 years | $304,200 |
| 10 years | $465,000 |
| 15 years | $617,600 |
These numbers are way above the overall averages because they show what happens when someone actually sticks with it. A 15-year continuous saver has an average balance of $617,600, more than four times the overall average. This is the single most important takeaway from the data: time in the market and contribution consistency matter far more than timing or picking the right investments.
The Compound Interest Calculator can help you model how your current savings rate will compound over different time horizons.
2026 401(k) Contribution Limits
| Category | 2026 Limit | Change from 2025 |
|---|---|---|
| Employee contribution (under 50) | $24,500 | +$1,000 |
| Catch-up contribution (age 50+) | $8,000 | +$500 |
| Super catch-up (ages 60-63, SECURE 2.0) | $11,250 | No change |
| Total with catch-up (50+) | $32,500 | +$1,500 |
| Total with super catch-up (60-63) | $35,750 | +$1,000 |
| Total contribution limit (all sources) | $70,000 | +$1,000 |
| IRA contribution limit | $7,000 | No change |
| IRA catch-up (50+) | $1,000 | No change |
Fidelity's Savings Milestones by Age
Fidelity's salary-multiple benchmarks are the most commonly cited targets. They assume retirement at 67, 15% savings rate (including employer match), and employr match), and a portfolio invested primarily in stocks during working years.
| Age | Savings Target | Example at $75K Salary |
|---|---|---|
| 30 | 1x salary | $75,000 |
| 35 | 2x salary | $150,000 |
| 40 | 3x salary | $225,000 |
| 45 | 4x salary | $300,000 |
| 50 | 6x salary | $450,000 |
| 55 | 7x salary | $525,000 |
| 60 | 8x salary | $600,000 |
| 67 | 10x salary | $750,000 |
By these benchmarks, the average Gen X saver ($222,100 on ~$75K income) is around 3x salary. Fidelity says they should be at 4-8x by that age. That's a meaningful gap. Salary across that range, suggesting a meaningful gap for the typical Gen X household. The Retirement Calculator can help you model whether your specific savings rate and timeline will close that gap.
What If You Are Behind?
If you're below the median, so is literally half the country. That's what median means. The question is what to do about it.
Get the full match. Employer match is free money. Contribute at least enough to capture every dollar. The most common match structure is 100% of the first 3% and 50% of the next 2% of salary. Not contributing enough to get the full match is leaving free money on the table. As of Q4 2025, 88.1% of Fidelity plan participants received a company match.
Bump 1% per year. Going from 6% to 15% overnight hurts. 6% to 7% is barely noticeable, especially if you time the increase with an annual raise. At 1% per year, you reach the recommended 15% in under a decade. Many plans offer auto-escalation features that do this automatically.
Use catch-up contributions aggressively. If you're 50 or older, the additional $8,000 catch-up in 2026 ($11,250 for ages 60-63 under SECURE 2.0) can make a meaningful dent in a savings shortfall. Maxing out the catch-up contribution for 10 years at a 7% return adds roughly $110,000-$140,000 to your balance.
Don't panic-sell. Only 5.4% of participants changed their allocation in Q4 2025 despite market swings. The 94.6% who stayed the course. Historical data consistently shows that staying invested through downturns produces better long-term results than attempting to time the market.
For a deeper look at retirement savings strategies and benchmarks, see our retirement savings by age guide and the FIRE Calculator for early retirement planning.
Budget to Save More With CMS Flow
Increasing your 401(k) contribution is easier when you know exactly where your money goes. CMS Flow is a free budgeting app that helps you track expenses, identify savings opportunities, and make room for higher retirement contributions without guessing.
Beyond the 401(k): Total Retirement Savings
Your 401(k) is usually just one piece. A lot of people also have IRAs, Roth IRAs, brokerage accounts, or pensions. Fidelity's Q4 2025 data shows average IRA balances by generation alongside 401(k) balances:
| Generation | Avg 401(k) | Avg IRA | Combined |
|---|---|---|---|
| Gen Z | $13,500 | $6,672 | $20,172 |
| Millennials | $67,300 | $25,109 | $92,409 |
| Gen X | $222,100 | $103,952 | $326,052 |
| Baby Boomers | $270,800 | $257,002 | $527,802 |
Boomers' IRA balances nearly match their 401(k)s because they've rolled over accounts from multiple jobs over decades. Younger workers' retirement money is mostly in the 401(k) still. The majority of retirement savings. The overall picture is more complete when you consider total net worth, which includes home equity, taxable investments, and other assets. See our net worth by age data for the full picture, or calculate yours with the Net Worth Calculator.
Are You on Track?
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Use the Retirement Calculator401(k) FAQ
For more on this topic, see our FIRE number.
For more on this topic, see our Roth vs Traditional IRA guide.
Sources
Fidelity Investments: Fidelity Q4 2025 Retirement Analysis (24.8 million participants)
Vanguard: How America Saves 2025 report (year-end 2024 data)
Internal Revenue Service: IRS 401(k) and IRA contribution limits
Related Tools
Plan your retirement with the Retirement Calculator. Model compound growth with the Compound Interest Calculator. Calculate your net worth with the Net Worth Calculator. Explore early retirement with the FIRE Calculator. Check your take-home pay with the Paycheck Calculator. And compare by state with our guide on best states for take-home pay.