Facebook offers in-depth user data about your school Page, called Insights. You can access this by going to “edit page” in the top right corner, then clicking on “Insights” on the menu on the left-hand side. Insights includes information on the gender, age and location of who is looking at your page, as well as which types of status updates are the most popular.
Insights only get displayed normally by Facebook if you have 31+ page likes. (unless they’ve changed the rules!)