First of all, I always post unofficial admission stats just after our decisions are released. You can click on the "statistics" tab at the bottom of this entry to see those posts. I'm pointing this out because some readers ask questions about data in the comments and the discussions might be interesting to you.
Second, there are tables of data on the Office of Institutional Assessment websites. Most schools have an office that generates official statistics. The name of the office will often have to words "institutional assessment" or "institutional research" in it. You can review the Common Data Set (all schools fill these out) and also see admission and enrollment data broken down by school and residency on the assessment website.
Third, there are some government websites that aggregate statistics from many universities. On the IPEDS website, you can look up specific schools and even compare multiple schools that you may be considering. If you are looking at Virginia schools the State Council of Higher Education in Virginia (SCHEV) collates statistics from all Virginia schools on their site.
If you decide to dig into the charts, just remember that in a holistic admission process, decisions aren't made using numbers alone. We'll be reading your entire file before rendering an admission decision. There are obviously pieces of data in your file, but all of the components of your file tell your story.
So much data.