I know that St. Andrews is 3A. They have approximately 115 students per grade (10-12). JA graduated about 100 last spring, so they would be slightly smaller than St. Andrews (hence 2A or 3A, probably 3A). Coach, how big is Prep??? I have no idea.
They said at that time we would've been the smallest 4A school. The senior class that year, though, was the largest ever. So, I'd assume Prep would be a 3A school now. JA is a good bit smaller and would also be 3A.