ZIP 07821 recorded 23 fire and hazmat incidents in 2025, 104 across 2021–2025. Primary county: Sussex County, NJ.
104 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 11 | |
| 2022 | 22 | |
| 2023 | 19 | |
| 2024 | 29 | |
| 2025 | 23 |
Mar peaks. Sep dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 07821 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 21 | 20.2% | |
| 2 | Power line down | 20 | 19.2% | |
| 3 | Brush, or brush and grass mixture fire | 13 | 12.5% | |
| 4 | Passenger vehicle fire | 10 | 9.6% | |
| 5 | Chimney or flue fire, confined to chimney or flue | 8 | 7.7% |
For the 7 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 07821 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Outside area, other | 4 | 40.0% | |
| 2 | Open area - outside; included are farmland, field | 2 | 20.0% | |
| 3 | Cooking area, kitchen | 1 | 10.0% | |
| 4 | Conduit, pipe, utility, or ventilation shaft | 1 | 10.0% | |
| 5 | Engine area, running gear, wheel area | 1 | 10.0% | |
| 6 | Undetermined | 1 | 10.0% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Hot ember or ash | 2 | 20.0% | |
| 2 | Undetermined | 2 | 20.0% | |
| 3 | Heat source: other | 1 | 10.0% | |
| 4 | Radiated, conducted heat from operating equipment | 1 | 10.0% | |
| 5 | Heat, spark from friction | 1 | 10.0% | |
| 6 | Cigarette | 1 | 10.0% | |
| 7 | Cigarette lighter | 1 | 10.0% | |
| 8 | Lightning | 1 | 10.0% |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 07821.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Andover | 48 | |
| 2 | Frelinghuysen | 15 | |
| 3 | Byram | 8 | |
| 4 | Green | 5 | |
| 5 | Newton | 2 |
Some ZIPs span multiple counties. The primary above is the largest by population weight; secondary counties are below.
| County | State | Weight | |
|---|---|---|---|
| Warren County | NJ | 1.00 | FIPS 34041 |
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 — 104 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.