You do with what you have. You adapt you over come. Sure living in a little town full of preppers has the best chance, unless you are lucky or independently wealth such is very tough to find and make work. Who knows you getting your own land maybe the start of such a place. That’s basically what my plan is.
A large farm or range with like minded family and friends IS a prepper community.
I live in suburban Tampa. Its not the best location but could be worse.
We would like to relocate out west. Love the idea of being in the mountains but can’t see how we can afford it. Second choice is somewhere in the TN, Kentucky, South Carolina areas. Population density in that area is still pretty high.