Finding 1
Somerville recorded 615 rodent-related service requests in 2025, or 73.0 per 10,000 residents.
City report · MA
Somerville Rodent Report: Complaints, Trends & Hotspots
In 2025, Somerville recorded 615 rodent-related service requests, equal to approximately 73.0 reports per 10,000 residents. This reflects reported activity, not a measured rodent population.
Key numbers
- Annual reports
- 615
- 2025, complete calendar year
- Reports per 10,000
- 73.0
- 84,211 city residents
- Year-over-year change
- -4.7%
- 2024 to 2025
- Peak reporting month
- August
- 91 reports
Source: Somerville 311 Service, Information, and Feedback Requests · U.S. Census Bureau population estimates · January–December 2025. Definitions and provenance.
Highest-reporting ward: 2 (109 reports). This is a total, not relative risk.
Ready to cite
Key findings
Directly calculated from the source records. Please keep the reporting caveat when quoting a comparison.
Finding 2
Somerville's report total fell by 4.7% from 2024 to 2025.
Finding 3
August had the highest monthly total in 2025: 91 reports.
Finding 4
December had the lowest monthly total: 22 reports.
Finding 5
2 had the largest total among records with a known ward: 109 reports. These are complaint totals, not relative risk.
Somerville: annual reports
Complete calendar years with the same configured reporting category. Historic records can be revised by the city.
Timeframe: 2023–2025. Last updated 2026-10-16. Axes: Complete calendar year; Municipal reports. Underlying sources: Somerville 311 Service, Information, and Feedback Requests · U.S. Census Bureau population estimates. Methodology. Data: RodentExterminator.com US Rodent Index.
View accessible data table: Somerville: annual reports
| City / year | Reports |
|---|---|
| 2023 | 741 |
| 2024 | 645 |
| 2025 | 615 |
CSV held pending source reuse verification
Somerville: monthly reports, 2025
August had the highest total (91 reports). Reporting season is not necessarily rodent breeding season.
Timeframe: 2025. Last updated 2026-10-16. Axes: Month; Municipal reports. Underlying sources: Somerville 311 Service, Information, and Feedback Requests · U.S. Census Bureau population estimates. Methodology. Data: RodentExterminator.com US Rodent Index.
View accessible data table: Somerville: monthly reports, 2025
| Month | Reports |
|---|---|
| Jan | 26 |
| Feb | 28 |
| Mar | 28 |
| Apr | 55 |
| May | 67 |
| Jun | 57 |
| Jul | 70 |
| Aug | 91 |
| Sep | 74 |
| Oct | 57 |
| Nov | 40 |
| Dec | 22 |
CSV held pending source reuse verification
Geographic reporting patterns
Where reports were recorded in 2025
0 of 615 reports have usable coordinates inside the configured city extent. 615 reports are not plotted. Counts show reporting volume, not relative risk.
No usable coordinate data is available for this year.
Source: Somerville 311 Service, Information, and Feedback Requests · January–December 2025. Definitions and provenance.
Ward totals
2 of 615 reports have no usable ward. No area population denominator is available.
| Ward | Reports |
|---|---|
| 2 | 109 |
| 3 | 97 |
| 4 | 97 |
| 5 | 93 |
| 6 | 80 |
| 1 | 72 |
| 7 | 65 |
ZIP code totals
615 of 615 reports have no usable zip code. No area population denominator is available.
| ZIP code | Reports |
|---|
For property-level prevention, see our rodent exclusion guide. Complaint totals cannot diagnose a specific property.
Recent 12-month trend
735 reports from 2025-09-01 through 2026-08-31, compared with 619 in the preceding 12 months (+18.7%).
The comparison ends at the last complete month in this snapshot, not today. It measures reports only. Reporting changes and later data revisions can affect this comparison.
| Window (end exclusive) | Reports |
|---|---|
| 2025-09-01 to 2026-09-01 | 735 |
| 2024-09-01 to 2025-09-01 | 619 |
Source: Somerville 311 Service, Information, and Feedback Requests. Definitions and provenance.
Methodology and source limits
Reporting systems, categories, response programs and willingness to report differ between cities. Counts are reports, not measured rodent populations.
Counts Somerville 311 requests typed Rats and Mice. Requests and inquiries for the city's Rodent Assistance Program are excluded.
The published file has no coordinates, so Somerville has no map. The data is licensed ODbL, so combined downloads are held.
The per-capita denominator is the Census city population, not metro-area or county population. The 2025 population estimate is 84,211, from Vintage 2025.
Inspect the source register, transformations and validation notes.
Source: Somerville 311 Service, Information, and Feedback Requests · U.S. Census Bureau population estimates. Definitions and provenance.
Open to scrutiny
Using this data
You may quote our analysis and reproduce our original charts with attribution. Include the reporting caveat and link to this research page and its methodology. Original government datasets retain their own terms. No government endorsement is implied.
Last retrieved: . Coverage: 2023-01-01 through 2026-08-31. Rankings use complete years only.
Combined CSV redistribution is held until every included source’s reuse terms are verified. Source links and permitted city downloads remain available.
Methodology & provenancePublisher resources and citation guidance · Questions or corrections