ZIP 95946 recorded 92 fire and hazmat incidents in 2025, 424 across 2021–2025. Primary county: Nevada County, CA. FEMA NRI rates wildfire risk here as Very High.
424 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 48 | |
| 2022 | 48 | |
| 2023 | 91 | |
| 2024 | 145 | |
| 2025 | 92 |
May peaks. Jan dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 95946 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Brush, or brush and grass mixture fire | 67 | 15.8% | |
| 2 | Grass fire | 57 | 13.4% | |
| 3 | Building fires | 43 | 10.1% | |
| 4 | Power line down | 32 | 7.5% | |
| 5 | Unauthorized burning | 30 | 7.1% |
For the 13 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 95946 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 12 | 26.1% | |
| 2 | Undetermined | 5 | 10.9% | |
| 3 | Vehicle area, other | 4 | 8.7% | |
| 4 | Attic: vacant, crawl space above top story, cupola | 3 | 6.5% | |
| 5 | Outside area, other | 3 | 6.5% | |
| 6 | Open area - outside; included are farmland, field | 3 | 6.5% | |
| 7 | Common room, den, family room, living room, lounge | 2 | 4.3% | |
| 8 | Operator/passenger area of transportation equip. | 2 | 4.3% | |
| 9 | All other areas | 12 | 26.1% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 22 | 47.8% | |
| 2 | Heat from powered equipment, other | 9 | 19.6% | |
| 3 | Arcing | 5 | 10.9% | |
| 4 | Heat source: other | 2 | 4.3% | |
| 5 | Radiated, conducted heat from operating equipment | 2 | 4.3% | |
| 6 | Hot ember or ash | 2 | 4.3% | |
| 7 | Hot or smoldering object, other | 1 | 2.2% | |
| 8 | Heat from other open flame or smoking materials | 1 | 2.2% | |
| 9 | All other sources | 2 | 4.3% |
Largest single-incident losses in ZIP 95946 across 2021–2025. These 8 fires alone account for 244% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $868,000 | Grass fire | 2023 | Major |
| 2 | $350,000 | Building fires | 2025 | Major |
| 3 | $350,000 | Building fires | 2025 | Major |
| 4 | $200,000 | Fire in mobile home used as fixed residence | 2024 | Significant |
| 5 | $150,000 | Building fires | 2024 | Significant |
| 6 | $104,229 | Grass fire | 2024 | Significant |
| 7 | $60,000 | Grass fire | 2025 | Significant |
| 8 | $50,000 | Building fires | 2024 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 95946.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Penn Valley | 317 | |
| 2 | Grass Valley | 4 | |
| 3 | Nevada City | 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 — 424 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.