ZIP 93420 recorded 103 fire and hazmat incidents in 2025, 405 across 2021–2025. Primary county: San Luis Obispo County, CA. FEMA NRI rates wildfire risk here as Very High.
405 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 44 | |
| 2022 | 55 | |
| 2023 | 63 | |
| 2024 | 140 | |
| 2025 | 103 |
May peaks. Dec dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 93420 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Power line down | 50 | 12.3% | |
| 2 | Building fires | 30 | 7.4% | |
| 3 | Passenger vehicle fire | 29 | 7.2% | |
| 4 | Gas leak (natural gas or LPG) | 25 | 6.2% | |
| 5 | Brush, or brush and grass mixture fire | 24 | 5.9% |
For the 6 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 93420 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 19 | 20.4% | |
| 2 | Outside area, other | 14 | 15.1% | |
| 3 | Other | 7 | 7.5% | |
| 4 | Cooking area, kitchen | 7 | 7.5% | |
| 5 | Common room, den, family room, living room, lounge | 4 | 4.3% | |
| 6 | Laundry area, wash house (laundry) | 4 | 4.3% | |
| 7 | Storage area, other | 4 | 4.3% | |
| 8 | Undetermined | 4 | 4.3% | |
| 9 | All other areas | 30 | 32.3% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 17 | 18.3% | |
| 2 | Heat source: other | 16 | 17.2% | |
| 3 | Heat from powered equipment, other | 16 | 17.2% | |
| 4 | Arcing | 8 | 8.6% | |
| 5 | Hot or smoldering object, other | 7 | 7.5% | |
| 6 | Radiated, conducted heat from operating equipment | 6 | 6.5% | |
| 7 | Flame/torch used for lighting | 4 | 4.3% | |
| 8 | Heat, spark from friction | 3 | 3.2% | |
| 9 | All other sources | 16 | 17.2% |
Largest single-incident losses in ZIP 93420 across 2021–2025. These 8 fires alone account for 1599% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $1,000,000 | Building fires | 2024 | Major |
| 2 | $700,000 | Building fires | 2024 | Major |
| 3 | $500,000 | Building fires | 2024 | Major |
| 4 | $375,000 | Building fires | 2024 | Major |
| 5 | $216,060 | Fires in structures other than in a building | 2023 | Significant |
| 6 | $200,000 | Brush, or brush and grass mixture fire | 2022 | Significant |
| 7 | $140,000 | Fire in motor home, camper, recreational vehicle | 2023 | Significant |
| 8 | $113,151 | Building fires | 2022 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 93420.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Arroyo Grande | 126 | |
| 2 | Oceano | 3 | |
| 3 | Callender | 2 | |
| 4 | Nipomo | 2 | |
| 5 | Montecito | 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 — 405 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.