Thanks! Sorry for confusion. It make sense then: the highest number of us are living in areas with zip codes starting with 9, which are west coast states including CA. Next are south east states where zip code start with 3 like FL, GA, closely followed by 2 (east coast states SC, NC, VA). This pole makes me think it may be better to find some less expensive area in CA, rather than moving somewhere else.
One thing I would say is to figure out what your COL would be if you don't relocate, assuming you are otherwise happy where you are. You may be find that it's not much cheaper to move, whether in or out of the state.
- If you own your home in CA and have for a while, your property taxes will likely be higher if you move.
- If you won't have much income in early retirement, your CA state income taxes will decrease from what you pay while working.
- If you stay in coastal CA, you have less need for home heating and cooling, and therefore lower energy costs than in most other places.
- Commuting costs disappear when you retire.
- You already have the appropriate summer and winter clothing, but you may have to make an investment in that if you move. Likewise, you may have annual costs for winterizing homes and vehicles in other locations that you don't have in CA.
- Overall grocery costs don't seem to vary that much within the continental U.S. Some foods are cheaper here, some more expensive, but the totals seem to be about the same no matter where we travel. (Hawaii excepted.)
- The health care situation in urban areas of CA, both by price and quality, is better than in a lot of other places.
- Travel costs increase when you move somewhere more remote.
- The main thing that I find we spend more on at home than in other states is restaurant meals. Minimum wages here are high, which drives up costs, and more restaurants are also passing along surcharges instead of rolling them into their pricing.
This is an individual analysis that is going to vary a lot depending on your own expenses and priorities, but I think it's worth doing it in order to have a real idea of the costs or savings you would get from relocating.