ZIP 91801 recorded 241 fire and hazmat incidents in 2025, 962 across 2021–2025. Primary county: Los Angeles County, CA. FEMA NRI rates wildfire risk here as Very High.
962 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 203 | |
| 2022 | 269 | |
| 2023 | 217 | |
| 2024 | 32 | |
| 2025 | 241 |
Jan peaks. Dec dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 91801 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Hazardous condition, other | 205 | 21.3% | |
| 2 | Power line down | 107 | 11.1% | |
| 3 | Building fires | 86 | 8.9% | |
| 4 | Gas leak (natural gas or LPG) | 82 | 8.5% | |
| 5 | Carbon monoxide incident | 78 | 8.1% |
For the 12 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 91801 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Outside area, other | 45 | 23.3% | |
| 2 | Undetermined | 38 | 19.7% | |
| 3 | Cooking area, kitchen | 23 | 11.9% | |
| 4 | Other | 14 | 7.3% | |
| 5 | Engine area, running gear, wheel area | 7 | 3.6% | |
| 6 | Open area - outside; included are farmland, field | 6 | 3.1% | |
| 7 | Vehicle area, other | 5 | 2.6% | |
| 8 | Common room, den, family room, living room, lounge | 4 | 2.1% | |
| 9 | All other areas | 51 | 26.4% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 117 | 60.6% | |
| 2 | Arcing | 13 | 6.7% | |
| 3 | Heat source: other | 10 | 5.2% | |
| 4 | Heat from powered equipment, other | 10 | 5.2% | |
| 5 | Radiated, conducted heat from operating equipment | 6 | 3.1% | |
| 6 | Spark, ember or flame from operating equipment | 4 | 2.1% | |
| 7 | Hot or smoldering object, other | 4 | 2.1% | |
| 8 | Hot ember or ash | 4 | 2.1% | |
| 9 | All other sources | 25 | 13.0% |
Largest single-incident losses in ZIP 91801 across 2021–2025. These 8 fires alone account for 2432% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $100,000 | Building fires | 2022 | Significant |
| 2 | $100,000 | Building or structure weakened or collapsed | 2023 | Significant |
| 3 | $80,000 | Building fires | 2021 | Significant |
| 4 | $57,000 | Passenger vehicle fire | 2023 | Significant |
| 5 | $50,000 | Mobile property (vehicle) fire, other | 2023 | Significant |
| 6 | $40,000 | Dumpster or other outside trash receptacle fire | 2023 | Significant |
| 7 | $20,000 | Building fires | 2022 | Significant |
| 8 | $15,000 | Fire, other | 2025 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 91801.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Alhambra | 930 | |
| 2 | Pasadena | 26 | |
| 3 | Monterey Park | 1 | |
| 4 | San Gabriel | 1 | |
| 5 | San Marino | 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 — 962 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.