That's a startling stat that's hard to appreciate even after pondering maps of U.S. population density like this one ... in these few spots on the U.S. map. "We are a much more big urban nation ...

as America's semi-autonomous economic states continue to compete, cooperate ... and thrive. Click on the thumbnail of the map to see our predictions for growth in employment, population and GDP of ...

The Coast Survey map of slavery was one of many maps drawn from data produced in 19th-century America ... as each of those measure in terms of population density and the percentage of the total ...

After selecting one of these languages from the menu, users will see a national population density map, with each dot representing about 100 people who speak the language at home placed where these ...