ZIP 01843 recorded 140 fire and hazmat incidents in 2025, 1,007 across 2021–2025. Primary county: Essex County, MA. FEMA NRI rates wildfire risk here as Moderate.
1,007 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 267 | |
| 2022 | 187 | |
| 2023 | 231 | |
| 2024 | 182 | |
| 2025 | 140 |
Sep peaks. Jun dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 01843 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Gas leak (natural gas or LPG) | 389 | 38.6% | |
| 2 | Building fires | 70 | 7.0% | |
| 3 | Brush, or brush and grass mixture fire | 65 | 6.5% | |
| 4 | Carbon monoxide incident | 64 | 6.4% | |
| 5 | Hazardous condition, other | 55 | 5.5% |
For the 7 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 01843 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Outside area, other | 44 | 23.7% | |
| 2 | Undetermined | 40 | 21.5% | |
| 3 | Engine area, running gear, wheel area | 15 | 8.1% | |
| 4 | Cooking area, kitchen | 12 | 6.5% | |
| 5 | Open area - outside; included are farmland, field | 7 | 3.8% | |
| 6 | Bedroom - < 5 persons; included are jail or prison | 6 | 3.2% | |
| 7 | Railroad right of way: on or near | 5 | 2.7% | |
| 8 | Bathroom, checkroom, lavatory, locker room | 4 | 2.2% | |
| 9 | All other areas | 53 | 28.5% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 96 | 51.6% | |
| 2 | Cigarette | 19 | 10.2% | |
| 3 | Arcing | 11 | 5.9% | |
| 4 | Hot ember or ash | 10 | 5.4% | |
| 5 | Hot or smoldering object, other | 9 | 4.8% | |
| 6 | Heat source: other | 8 | 4.3% | |
| 7 | Radiated, conducted heat from operating equipment | 7 | 3.8% | |
| 8 | Heat from powered equipment, other | 4 | 2.2% | |
| 9 | All other sources | 22 | 11.8% |
Largest single-incident losses in ZIP 01843 across 2021–2025. These 8 fires alone account for 1369% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $3,000,000 | Building fires | 2021 | Major |
| 2 | $400,000 | Building fires | 2021 | Major |
| 3 | $200,000 | Building fires | 2021 | Significant |
| 4 | $200,000 | Building fires | 2021 | Significant |
| 5 | $200,000 | Building fires | 2021 | Significant |
| 6 | $200,000 | Building fires | 2023 | Significant |
| 7 | $200,000 | Building fires | 2024 | Significant |
| 8 | $175,000 | Building fires | 2025 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 01843.
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 — 1,007 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.