In 2025, fire departments serving Chesterfield responded to 36 fire and hazmat incidents — from cooking fires to gas leaks to a single $50K 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 67% of all calls.
Feb peaks. Mar dips. Watch for the typical fall climb starting in October.
185 incidents 2021–2025. Peak year was 2021. $110K cumulative property loss.
| Year | Incidents | YoY | |
|---|---|---|---|
| 2021 | 53 | — | |
| 2022* | 20 | — | |
| 2023 | 38 | — | |
| 2024 | 38 | +0.0% | |
| 2025 | 36 | -5.3% |
* Well below Chesterfield'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 4 building fires Chesterfield departments responded to in 2025, here's how they were classified once investigators were finished.
NFIRS Area of Origin (AREA_ORIG) for the 13 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 | 4 | 30.8% | |
| 2 | Undetermined | 2 | 15.4% | |
| 3 | Function area, other | 1 | 7.7% | |
| 4 | Cooking area, kitchen | 1 | 7.7% | |
| 5 | Heating room or area, water heater area | 1 | 7.7% | |
| 6 | Structural area, other | 1 | 7.7% | |
| 7 | Cargo/trunk area - all vehicles | 1 | 7.7% | |
| 8 | Outside area, other | 1 | 7.7% | |
| 9 | Open area - outside; included are farmland, field | 1 | 7.7% |
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 Chesterfield mix.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 7 | 53.8% | |
| 2 | Heat source: other | 1 | 7.7% | |
| 3 | Heat from powered equipment, other | 1 | 7.7% | |
| 4 | Radiated, conducted heat from operating equipment | 1 | 7.7% | |
| 5 | Hot or smoldering object, other | 1 | 7.7% | |
| 6 | Molten, hot material | 1 | 7.7% | |
| 7 | Multiple heat sources including multiple ignitions | 1 | 7.7% |
Largest single-incident property losses reported by Chesterfield departments in 2025. These 3 fires alone account for 100% of the city's annual total.
| # | Property loss | Type | Severity | Status |
|---|---|---|---|---|
| 1 | $50,000 | Passenger vehicle fire | Significant | Investigated |
| 2 | $40,000 | Passenger vehicle fire | Significant | Investigated |
| 3 | $20,000 | Camper or recreational vehicle (RV) fire | Significant | Investigated |
Per-capita rates let us compare apples to apples. Chesterfield sits above the national average for incidents per resident.
Top 25 wildfires (1992+) in the FPA-FOD ignitions database, scaled by acres. 4,386 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 | 49.5 mi | |
| 2008 | Missing data/not specified/undetermined | 700 | 49.5 mi | |
| 2002 | Missing data/not specified/undetermined | 300 | 49.5 mi | |
| 2015 | Missing data/not specified/undetermined | 272 | 37.3 mi | |
| 1992 | Missing data/not specified/undetermined | 270 | 38.2 mi | |
| 2014 | Missing data/not specified/undetermined | 256 | 49.5 mi | |
| 2001 | Missing data/not specified/undetermined | 250 | 41.1 mi | |
| 2015 | Missing data/not specified/undetermined | 250 | 48.8 mi | |
| 2016 | Arson/incendiarism | 190 | 22.3 mi | |
| 2016 | Missing data/not specified/undetermined | 172 | 49.5 mi | |
| 2008 | Missing data/not specified/undetermined | 130 | 47.8 mi | |
| 2004 | Missing data/not specified/undetermined | 120 | 23.4 mi |
Top 6 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 Chesterfield. Useful comparison targets — same state, similar size, different fire profile.
1 departments report to NFIRS for incidents in Chesterfield.
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.