The differences in U.S. life expectancy are so large it’s as if the population lives in separate Americas instead of one.

Homes in the US are heated by a variety of fuels. The interplay of who, what, and where is on full display in this detailed ...

We study the causes of “nutritional inequality”: why the wealthy eat more healthfully than the poor in the United States. Exploiting supermarket entry, household moves to healthier neighborhoods, and ...

The United States is a collection of oddly shaped territories whose silhouettes have become instantly recognizable. How did Michigan lay claim to the Upper Peninsula and not Wisconsin? Here are ...