In 2025, fire departments serving Troy responded to 10 fire and hazmat incidents . Here's the full picture.
Building fires lead by count. Building fires lead by dollars. Together the top five categories make up about 90% of all calls.
Oct peaks. Jan dips. Watch for the typical fall climb starting in October.
83 incidents 2021–2025. Peak year was 2024. $100K cumulative property loss.
| Year | Incidents | YoY | |
|---|---|---|---|
| 2021 | 10 | — | |
| 2022* | 3 | — | |
| 2023 | 22 | — | |
| 2024 | 38 | +72.7% | |
| 2025 | 10 | -73.7% |
* Well below Troy's usual volume. That almost always means one or more departments didn't submit a full year to NFIRS, not that fires dropped, so no year-over-year change is shown for it.
For the 2 building fires Troy departments responded to in 2025, here's how they were classified once investigators were finished.
NFIRS Area of Origin (AREA_ORIG) for the 8 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 | Wildland, woods | 2 | 25.0% | |
| 2 | Undetermined | 2 | 25.0% | |
| 3 | Other | 1 | 12.5% | |
| 4 | Engine area, running gear, wheel area | 1 | 12.5% | |
| 5 | Exterior, exposed surface | 1 | 12.5% | |
| 6 | Open area - outside; included are farmland, field | 1 | 12.5% |
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 Troy mix.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 5 | 62.5% | |
| 2 | Conducted heat from another fire | 2 | 25.0% | |
| 3 | Radiated, conducted heat from operating equipment | 1 | 12.5% |
Per-capita rates let us compare apples to apples. Troy sits below the national average for incidents per resident.
Top 25 wildfires (1992+) in the FPA-FOD ignitions database, scaled by acres. 3,686 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 | 36.1 mi | |
| 2008 | Missing data/not specified/undetermined | 700 | 36.0 mi | |
| 2002 | Missing data/not specified/undetermined | 300 | 36.0 mi | |
| 2014 | Missing data/not specified/undetermined | 256 | 36.1 mi | |
| 2001 | Missing data/not specified/undetermined | 250 | 40.8 mi | |
| 2015 | Missing data/not specified/undetermined | 250 | 35.4 mi | |
| 2016 | Arson/incendiarism | 190 | 17.0 mi | |
| 2016 | Missing data/not specified/undetermined | 172 | 36.0 mi | |
| 2004 | Missing data/not specified/undetermined | 120 | 15.5 mi | |
| 2020 | Missing data/not specified/undetermined | 79 | 35.9 mi | |
| 2015 | Missing data/not specified/undetermined | 59 | 39.9 mi | |
| 2018 | Debris and open burning | 58 | 36.6 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 New Hampshire cities with population within ±25% of Troy. Useful comparison targets — same state, similar size, different fire profile.
1 departments report to NFIRS for incidents in Troy.
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.