Texas too does pretty good in the population density map (28 million people), as does Florida (21 million). And New York (20 million) gets a sizeable boost, from a small sliver to one of the ...

Click the button at the bottom of the interactive to select Los Angeles County, for instance, and then click anywhere on the map to generate a (roughly) circular region of (roughly) equal population.

Traditional population density maps are coloured but flat, ... making up 15 per cent of the US population. Clear visible clusters also exist in Florida, Illinois, Georgia and Texas.

A few years ago, Center City Philadelphia rose to the rank of the second most populous downtown district in the United States, predictably landing behind Midtown Manhattan. From 2000 to 2015 ...