Our work measures and visualizes the movements of groups of New Yorkers who share demographic characteristics.
The project uses cluster analysis methodology–common in economic or marketing studies–to identify 14 distinct demographic groups, or “population clusters,” in 2000 and follow their locations in 2010. By comparing the two years, we can see which population types grew in number or geographic size, or moved into new areas; if their numbers declined or they retreated from their neighborhoods and were replaced by others; or if groups’ locations remained relatively unchanged in a decade. By following groups of people with shared characteristics, we see a different portrait of a changing city. It is one that New Yorkers will recognize, as it reflects the neighborhoods they make for themselves.