ZIP 08831 recorded 400 fire and hazmat incidents in 2025, 1,734 across 2021–2025. Primary county: Middlesex County, NJ. FEMA NRI rates wildfire risk here as High.
1,734 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 45 | |
| 2022 | 325 | |
| 2023 | 426 | |
| 2024 | 538 | |
| 2025 | 400 |
Jul peaks. Feb dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 08831 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Cooking fire, confined to container | 525 | 30.3% | |
| 2 | Gas leak (natural gas or LPG) | 318 | 18.3% | |
| 3 | Arcing, shorted electrical equipment | 127 | 7.3% | |
| 4 | Building fires | 123 | 7.1% | |
| 5 | Fire, other | 69 | 4.0% |
For the 36 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 08831 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 88 | 48.9% | |
| 2 | Outside area, other | 22 | 12.2% | |
| 3 | Engine area, running gear, wheel area | 13 | 7.2% | |
| 4 | Highway, parking lot, street: on or near | 10 | 5.6% | |
| 5 | Open area - outside; included are farmland, field | 9 | 5.0% | |
| 6 | Other | 7 | 3.9% | |
| 7 | Cooking area, kitchen | 4 | 2.2% | |
| 8 | Vehicle storage area; garage, carport | 3 | 1.7% | |
| 9 | All other areas | 24 | 13.3% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 124 | 68.9% | |
| 2 | Arcing | 13 | 7.2% | |
| 3 | Heat source: other | 8 | 4.4% | |
| 4 | Heat from powered equipment, other | 6 | 3.3% | |
| 5 | Sunlight | 6 | 3.3% | |
| 6 | Radiated, conducted heat from operating equipment | 4 | 2.2% | |
| 7 | Hot or smoldering object, other | 4 | 2.2% | |
| 8 | Cigarette | 4 | 2.2% | |
| 9 | All other sources | 11 | 6.1% |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 08831.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Monroe | 336 | |
| 2 | Jamesburg | 74 | |
| 3 | Leisure Knoll | 3 | |
| 4 | Manalapan | 2 | |
| 5 | Cranbury | 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 — 1,734 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.