For anyone else interested, I discovered the IPEDS database lists what the schools consider their peers. The info is in the “Data Feedback Report” which I found here: https://nces.ed.gov/ipeds/datacenter/Dfr.aspx?unitid=195030
Rochester’s 2021 DFR says:
The custom comparison group chosen by University of Rochester includes the following 13 institutions:
Boston University (Boston, MA)
Case Western Reserve University (Cleveland, OH)
Duke University (Durham, NC)
Emory University (Atlanta, GA)
Johns Hopkins University (Baltimore, MD)
New York University (New York, NY)
Northwestern University (Evanston, IL)
Stanford University (Stanford, CA)
Tulane University of Louisiana (New Orleans, LA)
University of Chicago (Chicago, IL)
University of Southern California (Los Angeles, CA)
Vanderbilt University (Nashville, TN)
Washington University in St Louis (Saint Louis, MO)
ETA: I got the IPEDS source from this article that has a cool interactive feature to more easily find the “peers”, but it may require (free) subscription to view: https://www.chronicle.com/article/who-does-your-college-think-its-peers-are
It’s ridiculous how much I’ve learned about universities in the last several months! 