By Age Group
Average Student Loan Debt by Age Group (2026)
| Age Group | Avg. Student Loan Debt | Median Balance | % with Student Loans |
|---|---|---|---|
| Under 24 | $14,900 | $8,200 | 43% |
| 25–34 | $38,600 | $22,500 | 51% |
| 35–44 | $47,200 | $28,700 | 40% |
| 45–54 | $44,800 | $24,100 | 29% |
| 55–61 | $40,400 | $18,900 | 22% |
| 62+ | $30,200 | $14,400 | 9% |
Sources: Federal Reserve SCF 2022; U.S. Dept. of Education Q4 2025; Plootus Research 2026.
Retirement Impact
How Student Debt Delays Retirement — The Real Math
Student loan payments redirect money that would otherwise compound in retirement accounts. A borrower paying $400/month on student loans instead of investing that in a 401(k) at 7% over 10 years loses approximately $69,000 in potential retirement savings — just from the opportunity cost of the payment period.
$69K
Lost Compounding (10-Year Payoff)
$400/month student loan payment over 10 years at 6.53% interest. If invested at 7% instead: $69,000 in lost retirement compounding per $400/month.
4–7 yrs
Average Retirement Delay
Americans with significant student debt (over $30,000) retire an average of 4–7 years later than debt-free peers with similar incomes, due to reduced savings capacity and lower net worth accumulation.
Payoff vs. Invest: The Decision Framework
| Loan Interest Rate | Recommended Strategy | Rationale |
|---|---|---|
| Under 4% | Invest aggressively | Expected market returns (~7%) exceed guaranteed debt savings. Invest max 401(k) and IRA while making minimum loan payments. |
| 4–5.5% | Invest with moderate payoff | Close call. Capture 401(k) match, fund IRA, then split extra between loans and investing. |
| 5.5–7% | Split evenly | Uncertain which wins long-term. Split extra cash between extra loan payments and 401(k)/IRA contributions. |
| Over 7% | Pay off aggressively | Guaranteed return exceeds expected market returns. After capturing 401(k) match, put all extra toward loans. |
| Any rate (PSLF eligible) | Max 401(k)/IRA first | Contribute max to reduce AGI, lower IDR payments, and maximize forgiveness. 401(k) contributions effectively reduce your mandatory loan payment under income-driven plans. |
Frequently Asked Questions
Should I pay off student loans before saving for retirement?+
What is income-driven repayment (IDR) and who qualifies?+
What is Public Service Loan Forgiveness (PSLF)?+
📚 Sources
- Federal Reserve, Survey of Consumer Finances 2022
- U.S. Department of Education, Federal Student Loan Portfolio Q4 2025 (studentaid.gov)
- National Center for Education Statistics (NCES), Baccalaureate & Beyond Longitudinal Study 2024
- New York Federal Reserve, Center for Microeconomic Data — Student Loan Data
- AAMC, Medical Student Education: Debt, Costs, and Loan Repayment Facts 2025
- Plootus Research 2026
