ZIP 91901 recorded 167 fire and hazmat incidents in 2025, 690 across 2021–2025. Primary county: San Diego County, CA. FEMA NRI rates wildfire risk here as Very High.
690 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 109 | |
| 2022 | 111 | |
| 2023 | 147 | |
| 2024 | 156 | |
| 2025 | 167 |
Feb peaks. Apr dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 91901 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Passenger vehicle fire | 93 | 13.5% | |
| 2 | Outside rubbish, trash or waste fire | 89 | 12.9% | |
| 3 | Gas leak (natural gas or LPG) | 48 | 7.0% | |
| 4 | Building fires | 46 | 6.7% | |
| 5 | Brush, or brush and grass mixture fire | 45 | 6.5% |
For the 5 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 91901 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 59 | 36.4% | |
| 2 | Undetermined | 26 | 16.0% | |
| 3 | Open area - outside; included are farmland, field | 10 | 6.2% | |
| 4 | Operator/passenger area of transportation equip. | 7 | 4.3% | |
| 5 | Wildland, woods | 7 | 4.3% | |
| 6 | Outside area, other | 5 | 3.1% | |
| 7 | Other | 4 | 2.5% | |
| 8 | Cooking area, kitchen | 4 | 2.5% | |
| 9 | All other areas | 40 | 24.7% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 91 | 56.2% | |
| 2 | Heat from powered equipment, other | 23 | 14.2% | |
| 3 | Hot or smoldering object, other | 8 | 4.9% | |
| 4 | Heat source: other | 6 | 3.7% | |
| 5 | Spark, ember or flame from operating equipment | 6 | 3.7% | |
| 6 | Arcing | 6 | 3.7% | |
| 7 | Radiated, conducted heat from operating equipment | 4 | 2.5% | |
| 8 | Heat, spark from friction | 4 | 2.5% | |
| 9 | All other sources | 14 | 8.6% |
Largest single-incident losses in ZIP 91901 across 2021–2025. These 8 fires alone account for 897% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $1,500,000 | Building fires | 2024 | Major |
| 2 | $500,000 | Road freight or transport vehicle fire | 2023 | Major |
| 3 | $324,847 | Building fires | 2023 | Major |
| 4 | $260,000 | Building fires | 2024 | Major |
| 5 | $180,000 | Building fires | 2021 | Significant |
| 6 | $180,000 | Brush, or brush and grass mixture fire | 2023 | Significant |
| 7 | $100,000 | Road freight or transport vehicle fire | 2022 | Significant |
| 8 | $100,000 | Fire in mobile home used as fixed residence | 2023 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 91901.
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 — 690 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.