I requested the numbers for our local school system employment a few months ago - number of teachers, total number of employees.
I was a bit shocked to see how many administration, janitorial and maintenance people there were - and a lot of the work is contracted out so does not show up.
I read where 75 million people are involved some way in public education today -- school counsellors, pyschologists, social workers, bus drivers, cafeteria workers, janitorial staff, teachers, assistant principals, principals, test preparers, text book publishers, school police, etc., etc.