What Percentage of Americans Have a 401k? Statistics, Charts & Breakdown
POINTS
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About half of U.S. adults have a 401(k), though ownership is much higher among full-time workers.
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Nearly 70% of private-sector employees have access to a workplace retirement plan.
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Most workers who are eligible for a 401(k) participate, especially with automatic enrollment.
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Income is one of the biggest predictors of 401(k) participation and account balances.
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Lack of employer-sponsored retirement plans remains the primary reason many Americans don’t have a 401(k).
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Employer matching can substantially increase long-term retirement savings.
Millions of Americans rely on workplace retirement plans to build savings for the future, but access to these accounts is not the same across the workforce.
The share of Americans with a 401(k) provides insight into how common employer-sponsored retirement saving is and how many workers are participating.
U.S. adults with money in a 401(k), 403(b), or IRA.
Adults with no retirement savings account of any kind.
Retirement-Account Ownership
Recent surveys show roughly one-third of working-age Americans have a 401(k)-type account.
For example, the 2020 Census SIPP found only 34.6% of individuals aged 15–64 owned a 401(k)/403(b).
That 34.6% SIPP figure and the SCF’s 50% household estimate both point in the same direction:
- A meaningful majority of working-age Americans either have no 401(k), or
- Are relying on something else entirely.
Total IRA assets with $12 trillion now exceed the total 401(k) assets of $8 trillion, largely a reflection of workers rolling employer-plan balances into IRAs after leaving a job.
Traditional pensions, meanwhile, have all but disappeared from the private sector.
Unsurprisingly, state and local government jobs are the holdout; pensions there remain common even as private-sector coverage has all but converted to DC plans.
Why So Many People Have No 401(k) at All
Gap Between Being Offered a Plan and Actually Joining 401(k)
BLS data from 2025 shows 72% of private-industry workers had some retirement benefit available, and 70% specifically had access to a defined-contribution plan.
| Area | What the Data Shows | Implication |
|---|---|---|
| Employer plan access | 72% of private-sector workers have a retirement benefit; 70% have access to a DC plan. | Access remains the first barrier to retirement saving. |
| Firm size differences | Small firms (<100 workers): 59% access; large firms (500+ workers): 90% access. | Smaller employers provide much less retirement coverage. |
| Full-time workers | About 42% lack employer plan access. | Many full-time workers still have no workplace savings option. |
| Part-time workers | About 79% lack access; only 20–21% participate. | Limited eligibility drives low participation. |
| Overall participation | About 53% of private-sector workers participate in workplace retirement plans. | Participation is lower mainly because many workers lack access. |
| Eligible worker enrollment | 82–85% of eligible employees enroll when offered a plan. | Most workers participate once a plan is available. |
| Access vs. participation gap | Full-time workers: ~58% access / ~56% participate. Part-time workers: ~21% access / ~20% participate. | Coverage—not willingness—is the primary challenge. |
| Auto-enrollment impact | 94% participation with auto-enrollment vs. 64% with voluntary enrollment. | Automatic enrollment significantly increases participation. |
| Growth of auto-enrollment | Auto-enrollment increased from 10% of plans (2006) to 61% (2024). | Plan design has become a major participation driver. |
| Self-employed & gig workers | Most lack employer plans unless they create their own accounts. | Workers outside traditional employment face larger retirement gaps. |
For part-time workers, that figure jumps to 79.0%.
Add it up, and more than 50 million U.S. workers, full-time and part-time combined, had no employer plan whatsoever as of 2020.
Demographic Breakdowns: Age, Income, and Employment Status
Balances and Retirement Readiness
Average 401(k) Balance in America,
by Generation
Note: Figures reflect average 401(k) account balances by generation. Actual median balances are substantially lower than these averages, which are skewed upward by high savers and long-tenured investors.
The inequality embedded in all of this is stark.
Families with 401(k) or IRA savings have a median net worth of roughly $443,000; families without any retirement account sit at about $47,000.
Roughly half of all workers had no retirement plan at all, meaning Social Security and possibly home equity will effectively be their entire retirement plan.
Trends and Policy Changes Over the Last Decade
Coverage has grown, but slowly.
BLS data shows DC-plan access at 70% of private-sector workers in 2025, up only a few points from the early 2010s.
Vanguard’s own plan-weighted participation rate climbed only about four points, from 81% in 2015 to 85% in 2024.
Retirement Policy Changes: Timeline of Key Events
Major federal and state actions reshaping access to workplace retirement savings, 2019–2025.
If there’s a single throughline across all of this, it’s that access, not willingness, remains the binding constraint.
Once someone is actually offered a plan, especially one with auto-enrollment, they overwhelmingly participate.
The persistent gap in American retirement savings isn’t primarily a story about people declining to save; it’s a story about roughly half the workforce never being given the option in the first place.
401K Statistics FAQs
About half of U.S. households have some type of retirement account, including 401(k)s, IRAs, or pensions. Many workers still have no retirement savings plan.
401(k) plans are the most common employer retirement plan. IRAs hold more total assets, largely because many workers roll over old 401(k) accounts into IRAs.
Eligibility depends on the employer’s plan rules. Many plans require minimum age and service requirements, while newer laws have expanded access for some part-time workers.
Balances vary widely by age and savings habits. Average balances are often in the six figures for older workers, but median balances are much lower because many accounts have limited savings.
Yes, participation has increased, especially with automatic enrollment. However, many workers still do not have access to or participate in a retirement plan.
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