NYC’s Rattiest Neighborhoods: A 311 Rodent-Complaint Data Study

What we found: We analyzed New York City’s 311 rodent complaints (via NYC Open Data) to see where New Yorkers report rats and mice most. Brooklyn leads the city by a wide margin, and the single rattiest ZIP code is East Harlem (10035), followed by a long run of central Brooklyn neighborhoods. Here’s the full ranking — and what an Associate Certified Entomologist makes of it.

Every time a New Yorker reports a rat to 311, it becomes a public record. We pulled those rodent-complaint records from NYC Open Data and ranked the city — by borough and by ZIP code — to map where rats are reported most. I’m Jorge Bedoya, an Associate Certified Entomologist (ACE); below the data, I’ll explain what actually drives these patterns and what it means for your home or building.

CITE THIS STUDY

Journalists and researchers are welcome to cite this analysis. Please credit New York Exterminating with a link to this page. Suggested line: “According to a NYC 311 rodent-complaint analysis by New York Exterminating (nyepestcontrol.com)…” For an expert quote, contact Jorge Bedoya, ACE, at (347) 210-4646.

Rat complaints by borough

Brooklyn84,986
Manhattan60,582
Queens39,378
The Bronx37,796
Staten Island8,006

Brooklyn accounts for the most rodent complaints of any borough — more than Manhattan and roughly as many as Queens and the Bronx combined. Staten Island, with its lower density and more detached housing, sits far below the rest.

NYC’s 20 rattiest neighborhoods (by ZIP code)

#NeighborhoodBorough · ZIPComplaints
1East HarlemManhattan · 100356,753
2Bedford-Stuyvesant / Crown HeightsBrooklyn · 112165,329
3Upper West SideManhattan · 100255,230
4Bushwick / Bed-StuyBrooklyn · 112215,047
5FlatbushBrooklyn · 112264,758
6Prospect Heights / Clinton HillBrooklyn · 112384,681
7RidgewoodQueens · 113854,339
8BushwickBrooklyn · 112373,719
9Bed-Stuy / Ocean HillBrooklyn · 112333,717
10Park SlopeBrooklyn · 112153,473
11Harlem / Morningside HeightsManhattan · 100273,446
12HarlemManhattan · 100263,255
13WilliamsburgBrooklyn · 112113,245
14NorwoodThe Bronx · 104673,230
15Crown HeightsBrooklyn · 112133,114
16Upper West SideManhattan · 100243,085
17Williamsburg / East BushwickBrooklyn · 112063,019
18East New YorkBrooklyn · 112072,874
19Crown HeightsBrooklyn · 112252,725
20Highbridge / ConcourseThe Bronx · 104522,719

Methodology: rodent (rat & mouse) complaints filed with NYC 311 and published via the NYC Open Data Service Requests dataset. Figures reflect total complaints on record by borough and ZIP code.

What an entomologist sees in this data

These rankings aren’t random — they trace the city’s oldest, densest housing. The leaders share the same ingredients: aging sewer and water infrastructure, dense pre-war and brownstone building stock with countless gaps and shared walls, heavy foot traffic and food waste, and ongoing construction that displaces established colonies. East Harlem, central Brooklyn (Bed-Stuy, Crown Heights, Bushwick, Flatbush), and the Upper West Side check every box.

It’s also worth saying plainly: a high complaint count is not a sign that residents are doing anything wrong. Norway rats (Rattus norvegicus) follow infrastructure and food, not housekeeping. In neighborhoods like Ridgewood, Norwood, and Highbridge, the fix is the same one we use everywhere: find the entry points and seal the building, rather than just baiting.

What this means for your home or building

If you live or own property in one of these areas, treat rodent pressure as a constant to be managed, not a one-time event. The durable solution is exclusion — sealing the gaps rats use to get in (a rat needs only a quarter-inch) with metal mesh and hardware cloth — combined with monitoring and, where appropriate, burrow treatment. Bait alone never solves a rodent problem; it just refills. See our rat & mouse exclusion service, and the borough pages for Brooklyn, Manhattan, and the Bronx.

Rats in your building or block?

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Use this data: Journalists and researchers are welcome to cite this study with a link to this page. Source data: NYC Open Data, 311 Service Requests (rodent complaints).

About the author — Jorge Bedoya, ACE

Jorge Bedoya is an Associate Certified Entomologist (ACE) and the specialist behind New York Exterminating, with deep experience in rodent management and exclusion across all five boroughs. Meet Jorge »

Dealing with this pest now? See our rodent control & exclusion — ACE-led, no contracts, all five boroughs. Call (347) 210-4646 for a free estimate.

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