ZIP 91978 recorded 32 fire and hazmat incidents in 2025, 123 across 2021–2025. Primary county: San Diego County, CA. FEMA NRI rates wildfire risk here as Very High.
123 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 14 | |
| 2022 | 27 | |
| 2023 | 21 | |
| 2024 | 29 | |
| 2025 | 32 |
Sep peaks. Feb dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 91978 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Brush, or brush and grass mixture fire | 22 | 17.9% | |
| 2 | Passenger vehicle fire | 12 | 9.8% | |
| 3 | Unauthorized burning | 11 | 8.9% | |
| 4 | Natural vegetation fire, other | 9 | 7.3% | |
| 5 | Cooking fire, confined to container | 8 | 6.5% |
For the 0 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 91978 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 7 | 25.0% | |
| 2 | Undetermined | 7 | 25.0% | |
| 3 | Outside area, other | 3 | 10.7% | |
| 4 | Other | 2 | 7.1% | |
| 5 | Function area, other | 2 | 7.1% | |
| 6 | Chute/container - trash, rubbish, waste | 2 | 7.1% | |
| 7 | Vehicle area, other | 2 | 7.1% | |
| 8 | Bathroom, checkroom, lavatory, locker room | 1 | 3.6% | |
| 9 | All other areas | 2 | 7.1% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 16 | 57.1% | |
| 2 | Arcing | 3 | 10.7% | |
| 3 | Heat source: other | 2 | 7.1% | |
| 4 | Hot ember or ash | 2 | 7.1% | |
| 5 | Spark, ember or flame from operating equipment | 1 | 3.6% | |
| 6 | Radiated, conducted heat from operating equipment | 1 | 3.6% | |
| 7 | Candle | 1 | 3.6% | |
| 8 | Backfire from internal combustion engine | 1 | 3.6% | |
| 9 | All other sources | 1 | 3.6% |
Largest single-incident losses in ZIP 91978 across 2021–2025. These 8 fires alone account for 835% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $300,000 | Fire in mobile home used as fixed residence | 2021 | Major |
| 2 | $70,000 | Mobile property (vehicle) fire, other | 2024 | Significant |
| 3 | $55,000 | Building fires | 2021 | Significant |
| 4 | $50,000 | Building fires | 2024 | Significant |
| 5 | $35,000 | Passenger vehicle fire | 2025 | Significant |
| 6 | $30,000 | Passenger vehicle fire | 2025 | Significant |
| 7 | $25,000 | Passenger vehicle fire | 2023 | Significant |
| 8 | $20,000 | Passenger vehicle fire | 2023 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 91978.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Spring Valley | 75 | |
| 2 | San Miguel | 24 | |
| 3 | El Cajon | 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 — 123 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.