NYC's Rat Sightings Are Falling, and the Reason Isn't More Poison

New York City's Department of Sanitation (DSNY) has been tracking rat sightings reported through the city's 311 system for years, and the recent trend line is notable: reported sightings have declined for roughly twelve straight months on a year-over-year basis, and 2026 data shows that decline accelerating. Over the first seven months of 2026, rat sightings reported to 311 were down 22% compared to the same period in 2025, putting the city on track for its fewest reported rat sightings since before the pandemic. For a city whose rat population has been a running punchline for decades, that is a genuinely unusual data point — and the explanation behind it is worth examining, because it isn't about a new poison or a bigger baiting program.

The real change: what happens to the trash itself

For roughly fifty years, most New York City trash went out in plastic bags, piled directly on the sidewalk, waiting for pickup. That arrangement is effectively an open buffet for rats: a thin bag is not a barrier to a rodent, and bags sitting out for hours before collection give rats a reliable, undefended food source on a predictable schedule. The city's response, branded internally as the "Trash Revolution," started under the Adams administration in October 2022 and has unfolded in stages since: changing legal set-out times so loose bags can only go out later in the evening (while containerized waste can go out earlier), shifting a large share of collection routes in dense areas to midnight pickup instead of the traditional early-morning schedule, and — the biggest structural piece — requiring buildings to actually put their trash inside sealed, hard-sided containers rather than bags.

That containerization push has been rolling out borough by borough and neighborhood by neighborhood rather than all at once. By the start of 2025, DSNY reported that more than 70% of the city's trash was already required to go out in sealed containers, with the department working through the remaining 30% over the course of that year. In May 2025, Manhattan Community Board 9 became the first neighborhood in the city to have its trash fully containerized, after DSNY installed roughly 1,100 of the large, lidded "Empire Bins" along its streets. The logic is straightforward pest biology, not policy theater: a sealed container removes the food source rats depend on, rather than trying to kill rats faster than they can reproduce around an unlimited supply of garbage.

What the numbers actually show

DSNY's own reporting shows the decline building over time rather than appearing all at once. Comparing the same months year-over-year, rat sightings reported to 311 fell 23% in December 2024, 24% in January 2025, and 26% in February 2025 — each one part of a run that reached twelve consecutive months of year-over-year decline. That trend continued into 2026, with the 22% drop over January-to-July 2026 (versus the same stretch in 2025) representing one of the steepest sustained declines the city's 311 rat data has shown.

It's worth being precise about what this data does and doesn't claim. A 311 sighting is a resident report, not a population count — it's a proxy for how often people encounter rats in daily life, not a census of the city's rodent population. That makes it an imperfect measure, but it's also the same measure the city has used consistently for years, which is exactly what makes a sustained, multi-year, double-digit decline meaningful rather than noise.

The decline isn't even across the city — and that's informative too

The citywide average hides a lot of local variation, and the variation lines up with where containerization has actually reached. Brooklyn Community District 2, which includes DUMBO and Brooklyn Heights, saw rat sightings fall 48% — more than double the citywide rate. Manhattan Community District 3, covering the Lower East Side, East Village, and Chinatown, saw sightings climb 38% over the same period, moving in the opposite direction entirely. Neither number is a mystery once containerization rollout schedules are factored in: areas where sealed-bin requirements have been in place longest and most completely show the steepest declines, while areas still waiting on fuller containerization, or dealing with higher density and more restaurant/commercial waste, show much weaker results or outright increases.

Why this is relevant well beyond New York

The underlying principle here isn't specific to American sanitation trucks or community board boundaries — it's a core piece of rodent integrated pest management anywhere rats and people share dense urban space. Rodenticide and trapping address the rats that are already there; they don't remove the reason new rats keep arriving. Cutting off reliable access to food and shelter is what actually suppresses a population over time, which is why pest control professionals have long treated exclusion and sanitation as the foundation of rodent control, with baiting as a supporting tool rather than the whole strategy. New York's multi-year, city-scale experiment is unusually well-documented proof of exactly that principle playing out at a scale most individual properties never get to observe directly.

• New York City's reported rat sightings (via 311) fell roughly 20%+ year-over-year for about twelve straight months into 2025, with a 22% year-over-year decline over the first seven months of 2026.
• The driver is citywide containerization — moving trash out of sidewalk bags and into sealed, hard-sided bins — not a new rodenticide or expanded baiting program.
• More than 70% of NYC's trash was already containerized by the start of 2025, with the city working through the remaining share, borough by borough, over the course of the year.
• Results track the containerization rollout closely: Brooklyn Community District 2 saw sightings fall 48%, while Manhattan Community District 3 saw sightings rise 38% over the same period.
• 311 sighting reports measure how often residents encounter rats, not a direct population count — still, a sustained multi-year decline on a consistent measure is meaningful.

The same logic scales down to a single home or shop: sealing off food access and entry points does more for long-term rodent control than any single treatment ever will. A free Sevacorp inspection is a good way to find out where those access points actually are on a given property.

• Sources:
• NYC Department of Sanitation — "The Trash Revolution, Year One: New Data Shows Sustained Decrease in Rat Sightings" — https://www.nyc.gov/site/dsny/news/24-013/the-trash-revolution-year-one-new-data-shows-sustained-decrease-rat-sightings
• NYC Department of Sanitation — "NYC Rat Sightings Continue Historic Decline: Another Month Of Data Proves Containerization Works" — https://www.nyc.gov/site/dsny/news/24-015/nyc-rat-sightings-continue-historic-decline-another-month-data-proves-containerization
• NYC Mayor's Office — "The Empire Bin Strikes Back Against Rats: Next Phase Of Trash Revolution Begins" — https://www.nyc.gov/mayors-office/news/2025/06/the-empire-bin-strikes-back-against-rats-next-phase-trash-revolution-begins-west
• News 12 Bronx — "'Trash revolution.' 311 complaints about rat sightings down citywide" — https://bronx.news12.com/trash-revolution-311-complaints-about-rat-sightings-down-citywide
• Human Progress — "New York City Reports Fewer Rat Sightings" — https://humanprogress.org/new-york-city-reports-fewer-rat-sightings/