Ugh, I know I was on a site a few months ago that showed how many students from your high school were admitted to specific colleges and how many attended. I can’t remember what the site was. It has to be somehow linked to the colleges and high schools since the data was so specific. Does anyone know? I cant believe I cant find this now. Thank you!
Maybe Naviance?
Sometimes you can find the school profile it will tell you this. Google school profile.
ginger99! Yes, that’s it! Thank you!
No problem, glad I could help 
Often, the school profile only lists matriculations, not acceptances. But I think the OP got his/her answer with naviance.
So different high schools decide what to show on Naviance. Not all high schools collect and show the graphs of admissions data. For those that do show them, the data they have is only as good as the info students give them and the accuracy of the data entry process. Also, it is not uncommon for a school to not show the data if there are a small number of applicants from your school (although we found that asking the GC in person about those schools did elicit some useful information about past admission success to those schools).
my school has applicants from the last five years on naviance, but they also have a biggg book that had applicants from like '05 ask your counselor