Pick a state

I've never seriously thought about moving out of California. The politics absolutely suck, but this is home and my kids and grandkids are here, so are my parents. If my kids ever leave the state then I will think about it. The thing is that most of California is reasonably affordable and not loaded with people.
What part of california is reasonably affordable? I'm in one of the shittiest cities in california and the cost of living is outrageous.