ZIP 91103 recorded 130 fire and hazmat incidents in 2025, 575 across 2021–2025. Primary county: Los Angeles County, CA. FEMA NRI rates wildfire risk here as Very High.
575 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 125 | |
| 2022 | 103 | |
| 2023 | 117 | |
| 2024 | 100 | |
| 2025 | 130 |
Jan peaks. Apr dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 91103 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 50 | 8.7% | |
| 2 | Trash or rubbish fire, contained | 48 | 8.3% | |
| 3 | Power line down | 44 | 7.7% | |
| 4 | Unauthorized burning | 42 | 7.3% | |
| 5 | Passenger vehicle fire | 41 | 7.1% |
For the 8 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 91103 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 26 | 14.5% | |
| 2 | Highway, parking lot, street: on or near | 20 | 11.2% | |
| 3 | Cooking area, kitchen | 17 | 9.5% | |
| 4 | Outside area, other | 17 | 9.5% | |
| 5 | Open area - outside; included are farmland, field | 12 | 6.7% | |
| 6 | Undetermined | 10 | 5.6% | |
| 7 | Chute/container - trash, rubbish, waste | 9 | 5.0% | |
| 8 | Vehicle storage area; garage, carport | 9 | 5.0% | |
| 9 | All other areas | 59 | 33.0% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 70 | 39.1% | |
| 2 | Radiated, conducted heat from operating equipment | 16 | 8.9% | |
| 3 | Hot ember or ash | 15 | 8.4% | |
| 4 | Heat from powered equipment, other | 11 | 6.1% | |
| 5 | Spark, ember or flame from operating equipment | 11 | 6.1% | |
| 6 | Hot or smoldering object, other | 9 | 5.0% | |
| 7 | Arcing | 7 | 3.9% | |
| 8 | Heat from other open flame or smoking materials | 7 | 3.9% | |
| 9 | All other sources | 33 | 18.4% |
Largest single-incident losses in ZIP 91103 across 2021–2025. These 8 fires alone account for 180% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $1,000,000 | Building fires | 2025 | Major |
| 2 | $300,000 | Building fires | 2021 | Major |
| 3 | $300,000 | Building fires | 2023 | Major |
| 4 | $150,000 | Building fires | 2024 | Significant |
| 5 | $100,000 | Building fires | 2023 | Significant |
| 6 | $100,000 | Building fires | 2024 | Significant |
| 7 | $100,000 | Building fires | 2024 | Significant |
| 8 | $60,000 | Passenger vehicle fire | 2023 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 91103.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Pasadena | 571 | |
| 2 | Corona | 1 | |
| 3 | South Pasadena | 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 — 575 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.