[jsjohnst]

One last post to further emphasize my point, in the UK there are zero areas with a population of over 10k per square mile (highest[0] is ~15k per km², which is very roughly ~6k in miles²). In the US, there's >100 cities, per Wikipedia [1].

[0] https://en.m.wikipedia.org/wiki/List_of_English_districts_by... [1] https://en.m.wikipedia.org/wiki/List_of_United_States_cities...