I live in Mt view own a car and my home, all paid for, I have solar power and rainwater harvest those are the major expenses here. If you can do that, life here is cheap! What with growing some food hunting and fishing, $600 a month goes a long way here. On the down side there’s a lot of poverty, property crime and not much to do culturally and if your single….. good luck you’ll have little prospect here
The cost of living is way off. If you live a mainland lifestyle, sure, live a Hawaii lifestyle and it is far more affordable, my buddy lives off like $600/month - he is an extreme case.
Go to farmer's markets and pick your own food, don't buy junk food and you will save so much. Electricity will be your main cost of living expense, that is sky high.