While New York City is among the nation’s most dense cities, the Department of City Planning's Projected Population 2000 - 2030 dataset, available on the NYC Open Data portal, provides borough population projections that demonstrate how density differs across the five boroughs.
This graphic shows the approximate population per square mile in each borough in 2000, as well as 2030 projected population per square mile.
Check out this incredible geodata visualization of Brooklyn’s buildings color-coded to the year they were built. Using Department of City Planning data available through the NYC OpenData portal, the interactive map allows users to hover over buildings to see the address and year-built.
Thanks to @thomasrhiel at the BKLYNER for the post.