Breaking down America by demographics can reveal a lot of gaps. But none is so all-encompassing as the statistical social and functional contrasts involving population density.

Can America truly thrive while its cities are under siege — not only from political neglect like Electoral College and recent ...

A new report ranks the 100 best U.S. cities with populations over 500,000. The list evaluates cities based on six categories including economy, housing, and culture. New York, Chicago and Los Angeles ...