In 2025, fire departments serving Southborough responded to 95 fire and hazmat incidents — from cooking fires to gas leaks to a single $100K building blaze. Here's the full picture.
Power line down lead by count. Building fires lead by dollars. Together the top five categories make up about 61% of all calls.
Mar peaks. Nov dips. Watch for the typical fall climb starting in October.
499 incidents 2021–2025. Peak year was 2022. $4.4M cumulative property loss. 1 civilian deaths.
| Year | Incidents | YoY | |
|---|---|---|---|
| 2021 | 82 | — | |
| 2022 | 117 | +42.7% | |
| 2023 | 102 | -12.8% | |
| 2024 | 103 | +1.0% | |
| 2025 | 95 | -7.8% |
For the 2 building fires Southborough departments responded to in 2025, here's how they were classified once investigators were finished.
NFIRS Area of Origin (AREA_ORIG) for the 71 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 | 22 | 31.0% | |
| 2 | Undetermined | 16 | 22.5% | |
| 3 | Other | 7 | 9.9% | |
| 4 | Outside area, other | 6 | 8.5% | |
| 5 | Wildland, woods | 3 | 4.2% | |
| 6 | Cooking area, kitchen | 2 | 2.8% | |
| 7 | Chute/container - trash, rubbish, waste | 2 | 2.8% | |
| 8 | Attic: vacant, crawl space above top story, cupola | 2 | 2.8% | |
| 9 | Common room, den, family room, living room, lounge | 1 | 1.4% | |
| 10 | Laundry area, wash house (laundry) | 1 | 1.4% | |
| 11 | All other areas | 9 | 12.7% |
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 Southborough mix.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 40 | 56.3% | |
| 2 | Heat from powered equipment, other | 7 | 9.9% | |
| 3 | Radiated, conducted heat from operating equipment | 4 | 5.6% | |
| 4 | Heat source: other | 3 | 4.2% | |
| 5 | Arcing | 3 | 4.2% | |
| 6 | Hot or smoldering object, other | 2 | 2.8% | |
| 7 | Heat, spark from friction | 2 | 2.8% | |
| 8 | Lightning | 2 | 2.8% | |
| 9 | Spark, ember or flame from operating equipment | 1 | 1.4% | |
| 10 | Molten, hot material | 1 | 1.4% | |
| 11 | All other sources | 6 | 8.5% |
Largest single-incident property losses reported by Southborough departments in 2025. These 8 fires alone account for 99% of the city's annual total.
| # | Property loss | Type | Severity | Status |
|---|---|---|---|---|
| 1 | $100,000 | Road freight or transport vehicle fire | Significant | Investigated |
| 2 | $30,000 | Passenger vehicle fire | Significant | Investigated |
| 3 | $10,000 | Building fires | Significant | Investigated |
| 4 | $8,000 | Passenger vehicle fire | Significant | Investigated |
| 5 | $7,000 | Passenger vehicle fire | Significant | Investigated |
| 6 | $5,000 | Passenger vehicle fire | Significant | Investigated |
| 7 | $3,000 | Cooking fire, confined to container | Significant | Investigated |
| 8 | $2,000 | Dumpster or other outside trash receptacle fire | Significant | Investigated |
Per-capita rates let us compare apples to apples. Southborough sits above the national average for incidents per resident.
7 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 | 1 | |
| 30-39 | 1 | |
| 40-49 | 3 | |
| 50-59 | 1 | |
| 60-69 | 0 | |
| 70-79 | 0 | |
| 80+ | 0 |
Top 25 wildfires (1992+) in the FPA-FOD ignitions database, scaled by acres. 3,835 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 | 14.6 mi | |
| 2008 | Missing data/not specified/undetermined | 700 | 14.7 mi | |
| 2003 | Missing data/not specified/undetermined | 300 | 17.9 mi | |
| 2002 | Missing data/not specified/undetermined | 300 | 14.7 mi | |
| 2014 | Missing data/not specified/undetermined | 256 | 14.6 mi | |
| 2015 | Missing data/not specified/undetermined | 250 | 15.3 mi | |
| 2007 | Missing data/not specified/undetermined | 186 | 34.1 mi | |
| 2016 | Missing data/not specified/undetermined | 172 | 14.7 mi | |
| 2004 | Missing data/not specified/undetermined | 120 | 40.5 mi | |
| 2014 | Missing data/not specified/undetermined | 90 | 32.8 mi | |
| 2020 | Missing data/not specified/undetermined | 79 | 14.7 mi | |
| 2018 | Debris and open burning | 58 | 13.4 mi |
Top 2 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 Southborough. 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.