Indiana in 2010 was around roughly 300.
Ohio divides into 3 divisions with roughly 140-160 schools each. So it’s roughly the top 10% at state. Which is the best way to do it in my opinion.
The sweet spot is 2-3 divisions per state. The problem with most of the South is that they just go with the football divisions. Then make every other sport do that. Whereas in Ohio, IL, PA etc. each sport is looked by individually. So different sports will have a different number of divisions
It does much more to help the sport when a smaller school can get a couple kids to state and have a placer than for them to just go 0-2 at semi state. If people want the pUrITy.. go to Fargo.