9 states. New York is starting to roll out their program (but are letting individual counties to opt in)
Also to reiterate on what @euansmith already said, letting kids go hungry is even more expensive in the long run. Hungry kids end up being less focused/behaved which can cause issues in the classroom leaving already taxed teachers less focused on teaching, less focused students being more likely to have to take remedial classes/summer school which, surprise surprise will still end up costing taxpayers.
