Justin Fung

There are two million people who reside in Manhattan, but during the workday, thanks to the overwhelming number of commuters, the number of people on the island doubles to four million. This is the highest ratio of daytime-to-nighttime population anywhere in the country. To show how this population pulses over the course of a day, data visualization designer and researcher Justin Fung created the interactive Manhattan Population Explorer. First picked up by Fast Co. Design, the map highlights just how many people fill each city block for 24 hours. The height of crowdedness comes between 12 and 3pm, during which time, unsurprisingly, Midtown and Lower Manhattan show populations nearing 13,000. During the day, these 'hoods see their populations jump by 10 and four times respectively.
See what's going on with the rest of the island