ZIP 03301 recorded 260 fire and hazmat incidents in 2025, 1,806 across 2021–2025. Primary county: Merrimack County, NH.
1,806 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 356 | |
| 2022 | 397 | |
| 2023 | 387 | |
| 2024 | 406 | |
| 2025 | 260 |
Apr peaks. Dec dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 03301 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 196 | 10.9% | |
| 2 | Unauthorized burning | 191 | 10.6% | |
| 3 | Power line down | 183 | 10.1% | |
| 4 | Gas leak (natural gas or LPG) | 146 | 8.1% | |
| 5 | Cooking fire, confined to container | 110 | 6.1% |
For the 34 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 03301 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 52 | 16.3% | |
| 2 | Outside area, other | 50 | 15.7% | |
| 3 | Highway, parking lot, street: on or near | 41 | 12.9% | |
| 4 | Undetermined | 23 | 7.2% | |
| 5 | Cooking area, kitchen | 22 | 6.9% | |
| 6 | Open area - outside; included are farmland, field | 15 | 4.7% | |
| 7 | Bathroom, checkroom, lavatory, locker room | 8 | 2.5% | |
| 8 | Operator/passenger area of transportation equip. | 8 | 2.5% | |
| 9 | All other areas | 100 | 31.3% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 155 | 48.6% | |
| 2 | Cigarette | 30 | 9.4% | |
| 3 | Radiated, conducted heat from operating equipment | 23 | 7.2% | |
| 4 | Heat from powered equipment, other | 21 | 6.6% | |
| 5 | Arcing | 18 | 5.6% | |
| 6 | Hot or smoldering object, other | 9 | 2.8% | |
| 7 | Heat source: other | 8 | 2.5% | |
| 8 | Chemical reaction | 7 | 2.2% | |
| 9 | All other sources | 48 | 15.0% |
Largest single-incident losses in ZIP 03301 across 2021–2025. These 8 fires alone account for 248% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $750,000 | Building fires | 2021 | Major |
| 2 | $500,000 | Off-road vehicle or heavy equipment fire | 2021 | Major |
| 3 | $500,000 | Building fires | 2025 | Major |
| 4 | $335,000 | Building fires | 2024 | Major |
| 5 | $300,000 | Fire, other | 2025 | Major |
| 6 | $250,000 | Building fires | 2022 | Major |
| 7 | $250,000 | Building fires | 2022 | Major |
| 8 | $250,000 | Building fires | 2023 | Major |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 03301.
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 — 1,806 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.