more than likely as long as you find a city in the same county or close to the same county you will get a pretty good idea of the comparison. Like for example, I am in Darlington, SC. Thats not in the list but Sumter is pretty much the same as far as what things costs and taxes so I used that city.
My brother was stationed in Del Rio years ago. I don't think he cared for it too much. I think that the cost of living is all that high for Del Rio. You would probably be surprised. I will have to ask my brother.
I am surprised that Longview is on the list and Del Rio isn't??