Mostly as a note to myself to try to figure out what might be an appropriate level, The Heritage Foundation provides a chart showing how many people are employed by the states in their departments of education per million residents. Ms.  writes it up here:

She writes:

“Federal laws and regulations such as No Child Left Behind (NCLB) levy a mighty bureaucratic compliance burden on state departments of education.

A recent report conducted by The Heritage Foundation finds that state departments of education on average have 142 employees per million state residents.”

I note that Oklahoma is well above average at 226 per million, and Texas seems to be on to something. Texas is first (or last, if you wish) with an admirably efficient 30 per million.