The Common Data Set is one of the most useful tools in college research, and almost nobody outside admissions professionals actually uses it. Here's how to find it and what to do with it.
What the Common Data Set Actually Is
The CDS is a standardized set of definitions and data points that most U.S. colleges agree to report annually, originally developed as a joint effort between publishers, higher-ed associations, and colleges to create consistent, comparable data across institutions. Because the format is standardized, you can compare Section C7 at one school directly against Section C7 at another, which you can't reliably do comparing two schools' marketing websites.
How to Find It
Search "[school name] common data set", most schools host it directly, often through their institutional research, provost, or admissions office pages, sometimes as a simple PDF archive by year. If a direct search doesn't surface it immediately, check the school's institutional research office page directly; nearly every four-year college maintains one even if it's not heavily promoted.
Section C7: The Most Useful Section for Strategy
Section C7 is a table where the school rates how much weight it places on specific factors, rigor of coursework, GPA, class rank, test scores, essays, recommendations, extracurricular activities, character, and several others, using categories like "Very Important," "Important," "Considered," or "Not Considered." This is the school telling you, in its own words, what it actually weighs. It's far more reliable than a general assumption about what "holistic admissions" means, because it varies by school, some weight essays and extracurriculars very heavily, others weight academic factors almost exclusively.
Section B: Real Applicant and Enrollment Data
Section B breaks down applications, admits, and enrolled students with more granularity than most ranking sites, including gender and residency splits, waitlist numbers and how many were ultimately admitted from the waitlist, and yield rate. This is where you can check, for instance, whether a school's applicant pool actually skews heavily by gender, or how many students were pulled off the waitlist in a given year.
Section H: Financial Aid Reality
Section H reports the percentage of need met on average, the percentage of students who had full need met, and average award amounts, a much more precise picture than a school's general claims about generous aid.
What This Means for You
- Search "[school name] common data set" for every school on your list.
- Read Section C7 for each school to understand what that specific school actually weighs.
- Compare Section B data across schools you're considering, rather than relying on rankings alone.
- Check Section H before assuming a school's aid will meet your family's need.
- Use CDS data alongside (not instead of) genuine fit research like syllabi, faculty, and campus visits.
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