ZIP 19403 recorded 225 fire and hazmat incidents in 2025, 1,664 across 2021–2025. Primary county: Montgomery County, PA.
1,664 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 242 | |
| 2022 | 357 | |
| 2023 | 528 | |
| 2024 | 312 | |
| 2025 | 225 |
Aug peaks. Feb dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 19403 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 492 | 29.6% | |
| 2 | Gas leak (natural gas or LPG) | 218 | 13.1% | |
| 3 | Aircraft standby | 211 | 12.7% | |
| 4 | Cooking fire, confined to container | 105 | 6.3% | |
| 5 | Carbon monoxide incident | 75 | 4.5% |
For the 85 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 19403 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Cooking area, kitchen | 88 | 22.4% | |
| 2 | Outside area, other | 79 | 20.1% | |
| 3 | Undetermined | 39 | 9.9% | |
| 4 | Engine area, running gear, wheel area | 22 | 5.6% | |
| 5 | Highway, parking lot, street: on or near | 20 | 5.1% | |
| 6 | Open area - outside; included are farmland, field | 15 | 3.8% | |
| 7 | Other | 13 | 3.3% | |
| 8 | Vehicle area, other | 13 | 3.3% | |
| 9 | All other areas | 104 | 26.5% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 158 | 40.2% | |
| 2 | Radiated, conducted heat from operating equipment | 45 | 11.5% | |
| 3 | Arcing | 36 | 9.2% | |
| 4 | Heat from powered equipment, other | 30 | 7.6% | |
| 5 | Heat source: other | 21 | 5.3% | |
| 6 | Hot ember or ash | 19 | 4.8% | |
| 7 | Cigarette | 11 | 2.8% | |
| 8 | Hot or smoldering object, other | 10 | 2.5% | |
| 9 | All other sources | 63 | 16.0% |
Largest single-incident losses in ZIP 19403 across 2021–2025. These 8 fires alone account for 3784% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $350,000 | Building fires | 2023 | Major |
| 2 | $300,000 | Building fires | 2023 | Major |
| 3 | $275,000 | Building fires | 2021 | Major |
| 4 | $275,000 | Building fires | 2021 | Major |
| 5 | $275,000 | Building fires | 2021 | Major |
| 6 | $250,000 | Building fires | 2024 | Major |
| 7 | $200,000 | Building fires | 2023 | Significant |
| 8 | $175,000 | Building fires | 2024 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 19403.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Norristown | 539 | |
| 2 | Eagleville | 363 | |
| 3 | Audubon | 199 | |
| 4 | East Norriton | 81 | |
| 5 | Trooper | 59 |
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 — 1,664 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.