ZIP 90603 recorded 33 fire and hazmat incidents in 2025, 162 across 2021–2025. Primary county: Los Angeles County, CA. FEMA NRI rates wildfire risk here as Very High.
162 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 30 | |
| 2022 | 28 | |
| 2023 | 34 | |
| 2024 | 37 | |
| 2025 | 33 |
Oct peaks. Sep dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 90603 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Electrical wiring/equipment problem, other | 25 | 15.4% | |
| 2 | Arcing, shorted electrical equipment | 18 | 11.1% | |
| 3 | Building fires | 16 | 9.9% | |
| 4 | Cooking fire, confined to container | 14 | 8.6% | |
| 5 | Trash or rubbish fire, contained | 13 | 8.0% |
For the 1 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 90603 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 8 | 21.1% | |
| 2 | Other | 5 | 13.2% | |
| 3 | Cooking area, kitchen | 4 | 10.5% | |
| 4 | Undetermined | 3 | 7.9% | |
| 5 | Common room, den, family room, living room, lounge | 2 | 5.3% | |
| 6 | Vehicle storage area; garage, carport | 2 | 5.3% | |
| 7 | Structural area, other | 2 | 5.3% | |
| 8 | Attic: vacant, crawl space above top story, cupola | 2 | 5.3% | |
| 9 | All other areas | 10 | 26.3% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Arcing | 15 | 39.5% | |
| 2 | Heat source: other | 7 | 18.4% | |
| 3 | Undetermined | 5 | 13.2% | |
| 4 | Heat from powered equipment, other | 4 | 10.5% | |
| 5 | Radiated, conducted heat from operating equipment | 2 | 5.3% | |
| 6 | Heat from undetermined smoking material | 2 | 5.3% | |
| 7 | Incendiary device | 1 | 2.6% | |
| 8 | Heat from other open flame or smoking materials | 1 | 2.6% | |
| 9 | All other sources | 1 | 2.6% |
Largest single-incident losses in ZIP 90603 across 2021–2025. These 8 fires alone account for 2299% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $600,000 | Building fires | 2023 | Major |
| 2 | $500,000 | Building fires | 2024 | Major |
| 3 | $100,000 | Building fires | 2024 | Significant |
| 4 | $30,000 | Fire in mobile home used as fixed residence | 2021 | Significant |
| 5 | $25,000 | Outside rubbish, trash or waste fire | 2021 | Significant |
| 6 | $20,000 | Building fires | 2021 | Significant |
| 7 | $20,000 | Passenger vehicle fire | 2025 | Significant |
| 8 | $18,000 | Passenger vehicle fire | 2023 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 90603.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Whittier | 161 | |
| 2 | La Habra Heights | 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 — 162 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.