NYC Rodent Complaints by Borough

How do Brooklyn, Manhattan, Queens, the Bronx, and Staten Island compare on rodent complaint volume and DOHMH inspection results?

Study period: 1 Jan 2025 – 25 Jun 2026. Source: NYC 311 Open Data + DOHMH Rodent Inspections. Pull date: 2026-06-25.

How many rodent complaints did each borough file?

Between 1 January 2025 and 25 June 2026, New York City residents submitted 42,808 rodent complaints via the NYC 311 portal. Brooklyn led with 15,266 complaints (36% of the city total), followed by Manhattan at 11,371. Staten Island, the least-dense borough, recorded the fewest at 1,590.

NYC 311 Rodent Complaints by Borough — 1 Jan 2025 to 25 Jun 2026
Borough	Complaints	% of Total
Brooklyn	15,266	36%
Manhattan	11,371	27%
Queens	7,630	18%
The Bronx	6,951	16%
Staten Island	1,590	4%

Source: NYC 311 Open Data (erm2-nwe9), complaint_type='Rodent'. Pull date: 2026-06-25.

Which borough has the highest DOHMH inspection failure rate for rat activity?

The NYC Department of Health and Mental Hygiene (DOHMH) conducts rodent inspections and records results including "Failed for Rat Activity" — indicating active rat signs such as fresh burrows, runways, rub marks, or gnawing. The table below shows all-time inspection counts (full historical dataset available through 2026-06-25). Note: a high pass count can reflect either low infestation or high inspection frequency; the failure rate is the more diagnostic figure.

DOHMH Rodent Inspection Results by Borough — All-Time (through 2026-06-25)
Borough	Total Inspections	Failed (Rat Activity)	Failure Rate
Brooklyn	925,229	175,648	19%
Manhattan	979,740	157,164	16%
Queens	250,079	33,813	14%
The Bronx	847,412	148,323	18%
Staten Island	67,558	3,924	6%

Source: DOHMH Rodent Inspections (p937-wjvj). "Failed for Rat Activity" includes both "Failed for Rat Activity" and "Failed for Rat Activity and Other Reason" results. Pull date: 2026-06-25.