HS GPA Value

Hi, do colleges know what a certain from my school is? Like if the average gpa from my school to get into vanderbilt is a 4.1, and I apply with a 4.3, would the admissions committee look favorably toward admitting me? Basically I am asking whether colleges look at past students they accepted and judge you against them at all.

Thanks

If Vandy has accepted students from your school before then they are at least somewhat familiar with it. Your school will also send a HS profile showing grade breakouts which will point out how you compare to your peers. It looks like you are in the range for acceptance based solely on that information but they consider much more.
https://virg.vanderbilt.edu/virgweb/CDSC.aspx?year=2015