How many Americas are there?

The new edition of The Atlantic contains this interesting map, showing how changing median incomes and demographics have divided the United States into 12 distinct geographic areas, each contributing to an overall picture of increasing economic inequality. (It may be helpful to use your browser’s “zoom” feature as you look at the map.) For example, our institute is located in a county described by the map as a “monied burb,” while I grew up in a county that the authors have labeled “boom town.” I would venture a guess that many readers who are familiar with these counties will be surprised to see how they are labeled. We take the new map and other efforts like it with a grain of salt, but as something to provoke thought about how things are indeed very different than they used to be.