I have one single sex state school (and in fact there is only one private) in my county. It is in the county town, which we are not in the catchment for. It would take an hour and half to get to by public transport anyway.
Since it has been proven many times over that girls do better in single sex schools, why on earth aren’t there more options for those of us not in 11+ counties? I think it’s a great shame, and it doesn’t seem to be a thing that’s even being thought about.