ZIP 91311 recorded 178 fire and hazmat incidents in 2025, 1,058 across 2021–2025. Primary county: Los Angeles County, CA. FEMA NRI rates wildfire risk here as Very High.
1,058 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 108 | |
| 2022 | 201 | |
| 2023 | 290 | |
| 2024 | 281 | |
| 2025 | 178 |
Nov peaks. Apr dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 91311 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Outside rubbish, trash or waste fire | 411 | 38.8% | |
| 2 | Passenger vehicle fire | 98 | 9.3% | |
| 3 | Brush, or brush and grass mixture fire | 64 | 6.0% | |
| 4 | Electrical wiring/equipment problem, other | 64 | 6.0% | |
| 5 | Building fires | 58 | 5.5% |
For the 11 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 91311 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 51 | 17.7% | |
| 2 | Undetermined | 35 | 12.2% | |
| 3 | Highway, parking lot, street: on or near | 34 | 11.8% | |
| 4 | Outside area, other | 32 | 11.1% | |
| 5 | Vehicle area, other | 16 | 5.6% | |
| 6 | Open area - outside; included are farmland, field | 16 | 5.6% | |
| 7 | Chute/container - trash, rubbish, waste | 14 | 4.9% | |
| 8 | Operator/passenger area of transportation equip. | 10 | 3.5% | |
| 9 | All other areas | 80 | 27.8% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 113 | 39.2% | |
| 2 | Heat source: other | 34 | 11.8% | |
| 3 | Arcing | 29 | 10.1% | |
| 4 | Heat from powered equipment, other | 25 | 8.7% | |
| 5 | Heat from undetermined smoking material | 20 | 6.9% | |
| 6 | Hot or smoldering object, other | 14 | 4.9% | |
| 7 | Spark, ember or flame from operating equipment | 9 | 3.1% | |
| 8 | Heat from other open flame or smoking materials | 7 | 2.4% | |
| 9 | All other sources | 37 | 12.8% |
Largest single-incident losses in ZIP 91311 across 2021–2025. These 8 fires alone account for 19400% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $500,000 | Building fires | 2022 | Major |
| 2 | $500,000 | Building fires | 2023 | Major |
| 3 | $500,000 | Building fires | 2023 | Major |
| 4 | $200,000 | Building fires | 2024 | Significant |
| 5 | $75,000 | Fire in mobile home used as fixed residence | 2021 | Significant |
| 6 | $75,000 | Building fires | 2022 | Significant |
| 7 | $50,000 | Building fires | 2021 | Significant |
| 8 | $40,000 | Passenger vehicle fire | 2022 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 91311.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Los Angeles | 23 | |
| 2 | Simi Valley | 15 |
Some ZIPs span multiple counties. The primary above is the largest by population weight; secondary counties are below.
| County | State | Weight | |
|---|---|---|---|
| Ventura County | CA | 1.00 | FIPS 06111 |
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 — 1,058 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.