Remember when New York had the most people of any state?
In the next 30 years, New York is expected to drop a bit, down close to 19 million. California, on the other hand, should exceed 50 million by that time. Hint: do not expect real estate in California to keep dropping in value much longer.
About the people in Madera and Fesno counties using more water (if you meant that seriously), that ain't the problem. We are removing from production, land that feeds many people per acre, and replacing it with land that demands food, sometimes 20-30 mouths to feed per acre. This cannot go on much longer and it is exactly why "America's Bread Basket" is having problems.