I would say the entire west US. Moving from the midwest out the mountain west, it's crazy how much water they use out here. I never watered my lawn in the midwe

I would say the entire west US. Moving from the midwest out the mountain west, it's crazy how much water they use out here. I never watered my lawn in the midwest and like you said crops were never irrigated. Rainwater was enough for all of that. Out here in the high desert EVERYTHING is watered, it all dies if it isn't. Unless you're higher mountain elevation, nothing grows except sage, cactus, and weeds.