Hillsdale College is and always has been a unique institution in many ways. The website describes all of these ways. https://www.hillsdale.edu .
For our purposes, the following points are the most immediately relevant:
Founded in 1844 by religious methodists as a college to provide education to all applicants regardless of race or sex. It historically it has been very active in the Abolitionist movement and the American Civil War. To this day it strongly encourages religious/moral points of view among its students but imposes no specific religion requirements. From what I can tell I would guess the student body is 70% Protestant, 25% Catholic and the rest other. (The Jewish club has 10 members. Rumor is that the Democrat club has 4 members but no one really knows.) Total student body is around 1500 students.
Students are admitted based on test scores, GPA and other merit-based criteria. Information on ethnicity, gender, etc. is not considered. Hillsdale declines to collect such statistics and considers doing so contrary to its fundamental founding principles. For this reason, the U. S. Federal Government has declined to provide any kind of financial support to the college or its students directly or indirectly. Hence the need for programs such as this one.
Students are generally socially and politically conservative. Visibly distinct from those in California. Similar to the distinction between Midwesterners and Californians generally. Very friendly and respectful.
Very few foreign students. I think that this reflects the fact that it's not easy to recruit from overseas for such a small student body.
Fewer minority students than in California.
For a take from a more objective source see this. Admission to Hillsdale is more competitive than average. Currently only some 30% of applicants are admitted.