In 2025, fire departments serving Hamilton responded to 63 fire and hazmat incidents — from cooking fires to gas leaks to a single $400K 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 62% of all calls.
Oct peaks. Feb dips. Watch for the typical fall climb starting in October.
243 incidents 2021–2025. Peak year was 2025. $1.5M cumulative property loss.
| Year | Incidents | YoY | |
|---|---|---|---|
| 2021 | 45 | — | |
| 2022 | 30 | -33.3% | |
| 2023 | 48 | +60.0% | |
| 2024 | 57 | +18.8% | |
| 2025 | 63 | +10.5% |
For the 4 building fires Hamilton departments responded to in 2025, here's how they were classified once investigators were finished.
NFIRS Area of Origin (AREA_ORIG) for the 43 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 | Other | 7 | 16.3% | |
| 2 | Outside area, other | 7 | 16.3% | |
| 3 | Cooking area, kitchen | 6 | 14.0% | |
| 4 | Undetermined | 5 | 11.6% | |
| 5 | Open area - outside; included are farmland, field | 3 | 7.0% | |
| 6 | Equipment or service area, other | 2 | 4.7% | |
| 7 | Engine area, running gear, wheel area | 2 | 4.7% | |
| 8 | Assembly area without fixed seats - 100+ persons | 1 | 2.3% | |
| 9 | Bathroom, checkroom, lavatory, locker room | 1 | 2.3% | |
| 10 | Storage area, other | 1 | 2.3% | |
| 11 | All other areas | 8 | 18.6% |
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 Hamilton mix.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 11 | 25.6% | |
| 2 | Heat from powered equipment, other | 9 | 20.9% | |
| 3 | Heat source: other | 6 | 14.0% | |
| 4 | Hot or smoldering object, other | 5 | 11.6% | |
| 5 | Spark, ember or flame from operating equipment | 1 | 2.3% | |
| 6 | Radiated, conducted heat from operating equipment | 1 | 2.3% | |
| 7 | Arcing | 1 | 2.3% | |
| 8 | Heat, spark from friction | 1 | 2.3% | |
| 9 | Heat from other open flame or smoking materials | 1 | 2.3% | |
| 10 | Cigarette | 1 | 2.3% | |
| 11 | All other sources | 6 | 14.0% |
Largest single-incident property losses reported by Hamilton departments in 2025. These 3 fires alone account for 100% of the city's annual total.
| # | Property loss | Type | Severity | Status |
|---|---|---|---|---|
| 1 | $400,000 | Building fires | Major | Investigated |
| 2 | $150,000 | Building fires | Significant | Investigated |
| 3 | $500 | Fire, other | Significant | Investigated |
Per-capita rates let us compare apples to apples. Hamilton sits above the national average for incidents per resident.
Top 25 wildfires (1992+) in the FPA-FOD ignitions database, scaled by acres. 3,611 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 | 40.8 mi | |
| 2008 | Missing data/not specified/undetermined | 700 | 40.8 mi | |
| 2003 | Missing data/not specified/undetermined | 300 | 28.9 mi | |
| 2002 | Missing data/not specified/undetermined | 300 | 40.8 mi | |
| 2014 | Missing data/not specified/undetermined | 256 | 40.9 mi | |
| 2015 | Missing data/not specified/undetermined | 250 | 41.2 mi | |
| 2007 | Missing data/not specified/undetermined | 186 | 8.2 mi | |
| 2016 | Missing data/not specified/undetermined | 172 | 40.7 mi | |
| 2014 | Missing data/not specified/undetermined | 90 | 9.7 mi | |
| 2020 | Missing data/not specified/undetermined | 79 | 41.0 mi | |
| 2018 | Debris and open burning | 58 | 42.1 mi | |
| 2019 | Missing data/not specified/undetermined | 54 | 4.0 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 Hamilton. 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.