In 2025, fire departments serving Northborough responded to 130 fire and hazmat incidents — from cooking fires to gas leaks to a single $1.0M building blaze. Here's the full picture.
Gas leak (natural gas or LPG) lead by count. Building fires lead by dollars. Together the top five categories make up about 56% of all calls.
Jun peaks. Oct dips. Watch for the typical fall climb starting in October.
771 incidents 2021–2025. Peak year was 2022. $4.6M cumulative property loss. 1 civilian deaths.
| Year | Incidents | YoY | |
|---|---|---|---|
| 2021 | 141 | — | |
| 2022 | 169 | +19.9% | |
| 2023 | 164 | -3.0% | |
| 2024 | 167 | +1.8% | |
| 2025 | 130 | -22.2% |
For the 9 building fires Northborough departments responded to in 2025, here's how they were classified once investigators were finished.
NFIRS Area of Origin (AREA_ORIG) for the 105 building fires investigators classified across 2021–2025. The room or location where ignition occurred — kitchens, bedrooms, exterior, vehicle areas — tells you where to focus prevention.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 19 | 18.1% | |
| 2 | Cooking area, kitchen | 11 | 10.5% | |
| 3 | Wall surface: exterior | 7 | 6.7% | |
| 4 | Highway, parking lot, street: on or near | 6 | 5.7% | |
| 5 | Vehicle area, other | 5 | 4.8% | |
| 6 | Outside area, other | 5 | 4.8% | |
| 7 | Open area - outside; included are farmland, field | 5 | 4.8% | |
| 8 | Vehicle storage area; garage, carport | 4 | 3.8% | |
| 9 | Undetermined | 4 | 3.8% | |
| 10 | Other | 3 | 2.9% | |
| 11 | All other areas | 36 | 34.3% |
NFIRS Heat Source (HEAT_SOURC) — the physical thing that started it. Spark or ember from operating equipment, an open flame, smoking materials, or hot embers from a fireplace are the leading culprits nationwide. Here's the Northborough mix.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 28 | 26.7% | |
| 2 | Heat from powered equipment, other | 14 | 13.3% | |
| 3 | Arcing | 11 | 10.5% | |
| 4 | Spark, ember or flame from operating equipment | 10 | 9.5% | |
| 5 | Radiated, conducted heat from operating equipment | 10 | 9.5% | |
| 6 | Hot or smoldering object, other | 4 | 3.8% | |
| 7 | Hot ember or ash | 3 | 2.9% | |
| 8 | Cigarette lighter | 3 | 2.9% | |
| 9 | Heat from direct flame, convection currents | 3 | 2.9% | |
| 10 | Heat, spark from friction | 2 | 1.9% | |
| 11 | All other sources | 17 | 16.2% |
Largest single-incident property losses reported by Northborough departments in 2025. These 8 fires alone account for 99% of the city's annual total.
| # | Property loss | Type | Severity | Status |
|---|---|---|---|---|
| 1 | $1,000,000 | Building fires | Major | Investigated |
| 2 | $890,300 | Building fires | Major | Investigated |
| 3 | $25,000 | Passenger vehicle fire | Significant | Investigated |
| 4 | $16,000 | Passenger vehicle fire | Significant | Investigated |
| 5 | $10,000 | Building fires | Significant | Investigated |
| 6 | $10,000 | Passenger vehicle fire | Significant | Investigated |
| 7 | $8,000 | Passenger vehicle fire | Significant | Investigated |
| 8 | $5,000 | Fuel burner/boiler malfunction, fire confined | Significant | Investigated |
Per-capita rates let us compare apples to apples. Northborough sits above the national average for incidents per resident.
16 fire-related casualties recorded in NFIRS Module 11 across the 2021–2025 window. Age, gender, and severity are coarse-binned — no individual identification possible.
| Age | Count | |
|---|---|---|
| 0-9 | 0 | |
| 10-19 | 0 | |
| 20-29 | 0 | |
| 30-39 | 2 | |
| 40-49 | 2 | |
| 50-59 | 5 | |
| 60-69 | 1 | |
| 70-79 | 0 | |
| 80+ | 0 |
Top 25 wildfires (1992+) in the FPA-FOD ignitions database, scaled by acres. 4,149 acres burned in this 50-mile radius. Each dot is a fire — bigger dots burned more land.
| Year | Cause | Acres | Distance | |
|---|---|---|---|---|
| 2005 | Missing data/not specified/undetermined | 800 | 12.0 mi | |
| 2008 | Missing data/not specified/undetermined | 700 | 12.0 mi | |
| 2003 | Missing data/not specified/undetermined | 300 | 24.0 mi | |
| 2002 | Missing data/not specified/undetermined | 300 | 12.0 mi | |
| 2014 | Missing data/not specified/undetermined | 256 | 11.9 mi | |
| 2001 | Missing data/not specified/undetermined | 250 | 46.2 mi | |
| 2015 | Missing data/not specified/undetermined | 250 | 12.5 mi | |
| 2007 | Missing data/not specified/undetermined | 186 | 37.9 mi | |
| 2016 | Missing data/not specified/undetermined | 172 | 12.1 mi | |
| 2004 | Missing data/not specified/undetermined | 120 | 34.7 mi | |
| 2020 | Recreation and ceremony | 94 | 48.8 mi | |
| 2014 | Missing data/not specified/undetermined | 90 | 37.8 mi |
Top 3 ZIP codes by NFIRS incident count across 2021–2025. Each ZIP has its own fire profile — dive in for neighborhood-level context.
Six Massachusetts cities with population within ±25% of Northborough. Useful comparison targets — same state, similar size, different fire profile.
A 30-minute weekend can cut your home's exposure substantially. These four checklists are a good starting point.
Numbers reflect incidents reported by participating fire departments to the National Fire Incident Reporting System (NFIRS) Public Data Release for calendar year 2025. NFIRS is voluntary — about 23,000 of roughly 30,000 US fire departments report — so totals are a strong indicator, not a complete census. Per-capita comparisons use 2023 ACS population estimates. Wildland fire data complements NFIRS with NIFC and USFS perimeters. Active-fire counts come from a dated NIFC snapshot, not a live feed.