UChicago: The Stanford of DIII Sports?

If you did that calculation for the whole Pac 12 (or whatever it is now), it would be even more impressive. USC and UCLA also produce/house a whole bunch of Olympians, and Colorado and Utah have a good share of winter-sports athletes.

https://pac-12.com/article/2017/09/21/pac-12-conference-produces-most-us-olympians-olympic-history-according-study