ZIP 07421 recorded 111 fire and hazmat incidents in 2025, 370 across 2021–2025. Primary county: Passaic County, NJ.
370 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 74 | |
| 2022 | 59 | |
| 2023 | 13 | |
| 2024 | 113 | |
| 2025 | 111 |
Nov peaks. Jun dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 07421 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Gas leak (natural gas or LPG) | 61 | 16.5% | |
| 2 | Power line down | 43 | 11.6% | |
| 3 | Building fires | 39 | 10.5% | |
| 4 | Aircraft standby | 23 | 6.2% | |
| 5 | Unauthorized burning | 20 | 5.4% |
For the 9 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 07421 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 7 | 43.8% | |
| 2 | Outside area, other | 3 | 18.8% | |
| 3 | Chute/container - trash, rubbish, waste | 2 | 12.5% | |
| 4 | Other | 1 | 6.2% | |
| 5 | Attic: vacant, crawl space above top story, cupola | 1 | 6.2% | |
| 6 | Vehicle area, other | 1 | 6.2% | |
| 7 | Wildland, woods | 1 | 6.2% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 12 | 75.0% | |
| 2 | Hot ember or ash | 2 | 12.5% | |
| 3 | Match | 1 | 6.2% | |
| 4 | Sunlight | 1 | 6.2% |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 07421.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Hewitt | 348 | |
| 2 | West Milford | 15 | |
| 3 | Vernon | 3 | |
| 4 | Newfoundland | 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 — 370 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.