ZIP 03237 recorded 42 fire and hazmat incidents in 2025, 316 across 2021–2025. Primary county: Belknap County, NH.
316 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 59 | |
| 2022 | 70 | |
| 2023 | 81 | |
| 2024 | 64 | |
| 2025 | 42 |
Apr peaks. May dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 03237 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Power line down | 107 | 33.9% | |
| 2 | Building fires | 34 | 10.8% | |
| 3 | Brush, or brush and grass mixture fire | 34 | 10.8% | |
| 4 | Forest, woods or wildland fire | 27 | 8.5% | |
| 5 | Hazardous condition, other | 16 | 5.1% |
For the 4 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 03237 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Outside area, other | 19 | 29.7% | |
| 2 | Wildland, woods | 12 | 18.8% | |
| 3 | Open area - outside; included are farmland, field | 10 | 15.6% | |
| 4 | Undetermined | 7 | 10.9% | |
| 5 | Other | 4 | 6.2% | |
| 6 | Common room, den, family room, living room, lounge | 1 | 1.6% | |
| 7 | Function area, other | 1 | 1.6% | |
| 8 | Laundry area, wash house (laundry) | 1 | 1.6% | |
| 9 | All other areas | 9 | 14.1% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 13 | 20.3% | |
| 2 | Hot ember or ash | 7 | 10.9% | |
| 3 | Heat from other open flame or smoking materials | 7 | 10.9% | |
| 4 | Heat source: other | 6 | 9.4% | |
| 5 | Cigarette lighter | 5 | 7.8% | |
| 6 | Match | 3 | 4.7% | |
| 7 | Flame/torch used for lighting | 3 | 4.7% | |
| 8 | Heat from powered equipment, other | 2 | 3.1% | |
| 9 | All other sources | 18 | 28.1% |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 03237.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Gilmanton | 306 | |
| 2 | Alton | 1 | |
| 3 | Northfield | 1 |
The figures above are historical. For today's air quality, fire-weather warnings, and active fires, go to the official sources.
NFIRS reports each fire incident with a 5-digit address ZIP. We aggregate those rows directly to produce ZIP-level totals — 316 incidents in this ZIP across 2021–2025. Building-fire breakdowns (Area of Origin, Heat Source, ignition cause) only count fires investigators classified beyond the basic incident report. Because NFIRS reporting is voluntary, totals are a strong indicator rather than a complete census.