ZIP 91917 recorded 19 fire and hazmat incidents in 2025, 145 across 2021–2025. Primary county: San Diego County, CA. FEMA NRI rates wildfire risk here as Very High.
145 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 18 | |
| 2022 | 44 | |
| 2023 | 31 | |
| 2024 | 33 | |
| 2025 | 19 |
Aug peaks. Sep dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 91917 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Brush, or brush and grass mixture fire | 81 | 55.9% | |
| 2 | Building fires | 9 | 6.2% | |
| 3 | Unauthorized burning | 7 | 4.8% | |
| 4 | Natural vegetation fire, other | 6 | 4.1% | |
| 5 | Forest, woods or wildland fire | 6 | 4.1% |
For the 4 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 91917 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 5 | 25.0% | |
| 2 | Outside area, other | 3 | 15.0% | |
| 3 | Undetermined | 3 | 15.0% | |
| 4 | Exterior, exposed surface | 2 | 10.0% | |
| 5 | Highway, parking lot, street: on or near | 2 | 10.0% | |
| 6 | Common room, den, family room, living room, lounge | 1 | 5.0% | |
| 7 | Cooking area, kitchen | 1 | 5.0% | |
| 8 | Attic: vacant, crawl space above top story, cupola | 1 | 5.0% | |
| 9 | All other areas | 2 | 10.0% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 7 | 35.0% | |
| 2 | Heat from powered equipment, other | 3 | 15.0% | |
| 3 | Arcing | 3 | 15.0% | |
| 4 | Radiated, conducted heat from operating equipment | 2 | 10.0% | |
| 5 | Spark, ember or flame from operating equipment | 1 | 5.0% | |
| 6 | Hot ember or ash | 1 | 5.0% | |
| 7 | Cigarette lighter | 1 | 5.0% | |
| 8 | Heat from direct flame, convection currents | 1 | 5.0% | |
| 9 | All other sources | 1 | 5.0% |
Largest single-incident losses in ZIP 91917 across 2021–2025. These 8 fires alone account for 308% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $300,000 | Brush, or brush and grass mixture fire | 2022 | Major |
| 2 | $200,000 | Building fires | 2023 | Significant |
| 3 | $200,000 | Building fires | 2023 | Significant |
| 4 | $200,000 | Building fires | 2025 | Significant |
| 5 | $125,000 | Building fires | 2025 | Significant |
| 6 | $70,000 | Passenger vehicle fire | 2023 | Significant |
| 7 | $22,000 | Road freight or transport vehicle fire | 2025 | Significant |
| 8 | $22,000 | Road freight or transport vehicle fire | 2025 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 91917.
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 — 145 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.