a city of complaints.
every 311 complaint about heat, unsanitary conditions, rodents and mold from 2019 to 2023, pinned to the zip code it came from.
heat / hot water.
each spike is a zip code. the tallest, 10457 in the bronx, holds 37,141 complaints. the city's tallest skyline isn't in manhattan.
unsanitary conditions.
the same neighborhoods rise again, led by 10452 in the bronx with 14,735.
rodents.
the skyline moves. 10025, on manhattan's upper west side, leads with 4,482.
mold.
on the same scale as rodents, it barely registers.
mold, on its own scale.
set the tallest spike to 47 complaints and a different city appears, led by 11201 in brooklyn. same data, new scale: always read the axis.
explore.
hover a spike for its zip code's numbers, or switch the skyline between complaint types.
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NYC 311: housing & health
summary
where mold, pest and heating complaints concentrate, 2019–2023.
question
which NYC neighborhoods reported the most complaints about mold, pests and heating outages between 2019 and 2023, and what does that reveal about housing quality and health risk? these aren't just maintenance problems; they affect health, especially in communities already facing poverty and aging housing.
data
NYC 311 service requests from NYC open data, filtered to mold, pest and heat/hot-water complaints, using complaint type, borough, zip, date and status. because 311 depends on people reporting, some neighborhoods may be undercounted.
findings
the bronx and brooklyn had the most complaints, concentrated in the south bronx and central brooklyn, areas that often overlap with older housing and lower incomes. heating complaints spike in winter; mold and pests rise in summer. the map, timeline and borough comparison point toward targeted inspections and stronger tenant protections.