ZIP 95945 recorded 335 fire and hazmat incidents in 2025, 1,593 across 2021–2025. Primary county: Nevada County, CA. FEMA NRI rates wildfire risk here as Very High.
1,593 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 296 | |
| 2022 | 289 | |
| 2023 | 310 | |
| 2024 | 363 | |
| 2025 | 335 |
Aug peaks. Apr dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 95945 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Gas leak (natural gas or LPG) | 173 | 10.9% | |
| 2 | Building fires | 141 | 8.9% | |
| 3 | Power line down | 136 | 8.5% | |
| 4 | Unauthorized burning | 122 | 7.7% | |
| 5 | Vehicle accident, general cleanup | 103 | 6.5% |
For the 39 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 95945 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 31 | 15.3% | |
| 2 | Undetermined | 31 | 15.3% | |
| 3 | Cooking area, kitchen | 20 | 9.9% | |
| 4 | Outside area, other | 18 | 8.9% | |
| 5 | Other | 12 | 5.9% | |
| 6 | Wildland, woods | 8 | 3.9% | |
| 7 | Common room, den, family room, living room, lounge | 7 | 3.4% | |
| 8 | Bedroom - < 5 persons; included are jail or prison | 7 | 3.4% | |
| 9 | All other areas | 69 | 34.0% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 75 | 36.9% | |
| 2 | Heat source: other | 24 | 11.8% | |
| 3 | Hot ember or ash | 17 | 8.4% | |
| 4 | Heat from powered equipment, other | 16 | 7.9% | |
| 5 | Hot or smoldering object, other | 13 | 6.4% | |
| 6 | Radiated, conducted heat from operating equipment | 11 | 5.4% | |
| 7 | Arcing | 7 | 3.4% | |
| 8 | Cigarette lighter | 6 | 3.0% | |
| 9 | All other sources | 34 | 16.7% |
Largest single-incident losses in ZIP 95945 across 2021–2025. These 8 fires alone account for 513% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $1,000,000 | Building fires | 2024 | Major |
| 2 | $750,000 | Building fires | 2024 | Major |
| 3 | $526,000 | Building fires | 2021 | Major |
| 4 | $500,000 | Building fires | 2021 | Major |
| 5 | $500,000 | Brush, or brush and grass mixture fire | 2023 | Major |
| 6 | $400,000 | Building fires | 2022 | Major |
| 7 | $400,000 | Building fires | 2023 | Major |
| 8 | $350,000 | Building fires | 2024 | Major |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 95945.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Grass Valley | 1,426 | |
| 2 | Penn Valley | 2 | |
| 3 | Altadena | 1 | |
| 4 | Colfax | 1 | |
| 5 | Loyalton | 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 — 1,593 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.