Kiplingers magazine does a story every year that compares what it costs to live in each state, and in the bigger states, they break it down to major cities as well. I forget the lowest one, but I think Wyoming was one of the cheapest.
I'm in Texas, and it's in the middle.
The most expensive were in New England. All those little states in the North East were just way off the chart!!! Sorry guys, nothing personal against anybody living there.
There criteria was what it costs a family to live in each place. Same sized family, same sized home and compared taxes along with cost of living.
I don't know how accurate it was since there are so many variables, but it gives you an idea of what to look for. You could try their website to see if it's listed there.
Good luck, if you find a good source, please update us with it, I'm very curious.
Eddie