I said greater LA, whereby, to be precise, I meant Los Angeles metro area. The density of LA metro is 2,702.5ppl/km2, compared to 2,053.6ppl/km2 for NY metro. LA metro is denser by a good margin.

NY metro area includes a lot of very sparse suburbs. LA is mildly dense all over.

Source: https://en.wikipedia.org/wiki/List_of_United_States_urban_ar...

http://www2.census.gov/geo/docs/reference/ua/ua_list_all.txt