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A comment on The Portuguese can no longer afford to live in Portugal. Parent comment
Lisbon: 6,452/km2
Barcelona: 16,000/km2
NYC: 25,000+/km2 (depends on the source)
Lower East Side NYC: 33,600/km2 - due to zoning regs, there are very few buildings over 9 stories... but every building is 9 stories!
Lower East Side NYC 1910: 144,000+/km2 - visit https://www.tenement.org/ to learn more.
Kowloon Walled City, 1970s: ~2M/km2 !!! - inspiring 1000s of dystopian Sci Fi stories from Akira to Blade Runner. https://www.google.com/search?q=Kowloon+Walled+City
http://demographia.com/db-nyc-sector1800.htm
25,000/km2
It’s pretty quiet too! :)
Lisbon: 6,452/km2
Barcelona: 16,000/km2
NYC: 25,000+/km2 (depends on the source)
Lower East Side NYC: 33,600/km2 - due to zoning regs, there are very few buildings over 9 stories... but every building is 9 stories!
Lower East Side NYC 1910: 144,000+/km2 - visit https://www.tenement.org/ to learn more.
Kowloon Walled City, 1970s: ~2M/km2 !!! - inspiring 1000s of dystopian Sci Fi stories from Akira to Blade Runner. https://www.google.com/search?q=Kowloon+Walled+City
http://demographia.com/db-nyc-sector1800.htm