A top-liked answer to this question references a PEW survey of Americans. That gives us a sense of satisfaction or dissatisfaction with college, but does not empirically answer the question (1) if college is worth the cost, and (2) for most Americans.
College is a significant investment in out-of-pocket costs and opportunity costs estimated at over $215,000 for the median US four-year college graduate (see chart below). As with all investments, we should be able to empirically assess whether that investment yields a favorable or subpar return for both the individual and the majority.
Is college worth the cost for an individual in the USA? The answer will depend on the chosen field of study, the amount the student pays to attend (including the length of the program, out-of-pocket expenses, and opportunity costs), and the institution's quality in delivering graduates that employers value. For many, college will be a good investment. Unfortunately, for many others, it's not.
The question aims to understand whether most of those degrees are good investments. We can explore this answer factually by looking at what it means for the median student (midpoint of assumptions on cost and income):
We can determine that a median college graduate (holding a 4-year degree) is a subpar investment by projecting the Net Present Value of Their Lifetime Earnings, net of costs and taxes.
Comparison of Median High School and College Graduates' Career earnings and Present Value of Career earnings after taxes

I first did this analysis in 2013 and updated it in 2025.
My analysis utilizes the college-reported costs and earnings from the Department of Education's NCES source (College Scorecard) to compare the median college graduate with the median high school graduate, employing the traditional Discounted Cash Flow model for evaluating investments.
Update: Given the questions posed, here are some highlights of the research and why we arrived at the conclusion above:
- Many ignore the substantial opportunity cost of missed earnings while attending college, which should be added to the out-of-pocket costs when considering the overall investment to attend college:
Cumulative cash flow for the first four years of college, illustrating the opportunity cost that must be recovered even if you paid no tuition or fees

- Using the data from BLS and NCES regarding salaries, we can create a synthetic forecast of lifetime income. Most studies do not use a growth rate. Our analysis uses the same rate for college and high school after examining the historical record of median earnings growth. We make this an optional value for the user because it did not change the conclusion. Here is what that forecast would look like for the high schooler and median college graduate:
Cumulative Cash Flow For a Career - The financial impact of Taxes and Time Value of Money

- We use the latest tax structure to recalculate the earnings after tax each year and use a discount rate to find their present value. Our discount rate reflects the financing rates and risks associated with a college degree, and is slightly higher than those used by Federal Reserve researchers. The risks? Less than 50% of students graduate within 4 years. Only 65% graduate in 6years! 41% of new graduates are underemployed, working in jobs that do not require a degree, and 31%+ of all college graduates are underemployed. The following chart shows what happens to the income stream after taxes and net present value adjustment:
Most Colleges are below breakeven to HS Graduates when comparing the salary required to pay for the college investment

We can identify that if a student attends college without tuition, meaning they only have the opportunity cost to make up, they need to earn approximately $50k upon graduation to break even with a high school graduate. The following chart plots all four-year colleges in our analysis at the time of writing. Note the large number of institutions that will be subpar investments if the schools were free to attend:
Colleges' Median Costs and Earnings and their relation to High School breakeven earnings required

Assumptions, caveats, and data sources when determining a college return on investment are explained here.
Each potential college-bound student will have a different answer based on their interests, capabilities, and choices. One is likely to generate a positive return if the field of study is among the high-demand-to-supply set, the student demonstrates academic excellence, and the costs of attendance are reasonable at an institution that produces graduates favored by employers.
Request: I have noticed a prevalence of downvotes without comments. It would be most helpful to improve the answer if you could leave a comment with your reason for downvoting, whatever that may be.
I am happy to answer questions not addressed above or in the attached links.
Questions Raised and Rebuttals
A. MisterMiyagi asked about sources. Each chart lists the primary data sources, and the page linked above provides a detailed explanation of the assumptions, caveats, and data sources used in the analysis. I am adding a brief explanation here, FYI: My team and I built an investment model using a series of assumptions and public data, which creates a synthetic forecast of a high school graduate, an individual college choice, and the median college student. We downloaded data from the college scorecard. The same data is also available from IPEDS/NCES, but it is a little harder to extract there. We used the May 2024 download for this analysis. The relevant data used included the median cost to attend the college, the full price, and the median earnings upon graduation. All of the data used has been excerpted and included in the spreadsheet file. Also included are sources and an explanation of the significant assumptions. I encourage peer review, so please get in touch with me, and I will be happy to send you the complete spreadsheet.