I'm sure there's a wide discrepancy between city and rural districts, and between states, but this sure ain't the story we heard just twenty years ago:
Dept. of Labor: Public School Teachers Are Highest Paid State Workers; Compensation Doubles the Average in Private Industry
The refrain went from "public school teachers are grossly underpaid" to "Do you have any Grey Poupon?"
The upside is the fact that America's children are being so much better educated now ...