Looks like Florida redistricts every couple of years now. Schools can petition to be in a certain district, but in terms of history and rivalries, that's all toast. When I played, it only went up to 6A, now it goes up to 8A. The private schools are mostly grouped into the smaller division districts, but there is some mixing there.
But there's also independents, like IMG.
Why does everything have to be put on blast, full-bore? Why can't we leave HS athletics alone? Why does there need to be artificial juggernauts recruiting kids from across the country to beat up on other 16 year olds? Everything gets so bastardized.
In my HS's current district, none of those schools were on our schedule when I played in the late 90s. That's lame.