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I assume you're talking about the "urban area" column at https://en.wikipedia.org/wiki/List_of_cities_in_China_by_pop... ? It's not clear to me how that's defined, nor what the US equivalent would be.... As for density of US cities, Cambridge is administratively a suburb of Boston, but has a population density of 6400/km^2. At https://en.wikipedia.org/wiki/List_of_United_States_cities_b... it's the 5th densest city on the list. Boston itself has a population density of 5100/km^2, which is less dense. OK, so maybe Cambridge is weird. But Somerville is right next to Cambridge and has a density of 7400/km^2. Oh, and for economic interaction purposes, Cambridge and Somerville are a lot closer to downtown Boston than many parts of Boston proper. Similar for Chelsea (6100/km^2). Everett (4700/km^2) and Malden (4500/km^2) are up there too. Other Boston suburbs are a bit less dense: Brookline is at 3300/km^2, Watertown at 3000/km^2, Arlington at 3200/km^2. The interesting thing is to compare those to places like Chicago (4500/km^2) or Los Angeles (3100/km^2). Those are cities that annexed their suburbs, unlike Boston, so if you just compare the "city" population you're comparing apples to oranges. Comparing the population of the "densely zoned/settled area" would be useful, but no one seems to publish that. I assume it would be possible to get that information from census data, though... Of course as long as we're talking about cities that annexed various surrounding stuff, Houston is at 1300/km^2 and so is Dallas. ;) Which just goes to show that comparing "city" stuff is hard, because cities are just so different from each other. |