ZIP 94558 recorded 407 fire and hazmat incidents in 2025, 2,445 across 2021–2025. Primary county: Napa County, CA. FEMA NRI rates wildfire risk here as Very High.
2,445 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 496 | |
| 2022 | 453 | |
| 2023 | 521 | |
| 2024 | 568 | |
| 2025 | 407 |
Feb peaks. Sep dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 94558 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Power line down | 295 | 12.1% | |
| 2 | Gas leak (natural gas or LPG) | 256 | 10.5% | |
| 3 | Electrical wiring/equipment problem, other | 214 | 8.8% | |
| 4 | Outside rubbish, trash or waste fire | 146 | 6.0% | |
| 5 | Outside rubbish fire, other | 128 | 5.2% |
For the 16 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 94558 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 136 | 27.1% | |
| 2 | Outside area, other | 62 | 12.4% | |
| 3 | Engine area, running gear, wheel area | 43 | 8.6% | |
| 4 | Cooking area, kitchen | 28 | 5.6% | |
| 5 | Open area - outside; included are farmland, field | 27 | 5.4% | |
| 6 | Other | 24 | 4.8% | |
| 7 | Chute/container - trash, rubbish, waste | 16 | 3.2% | |
| 8 | Vehicle storage area; garage, carport | 12 | 2.4% | |
| 9 | All other areas | 153 | 30.5% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 299 | 59.7% | |
| 2 | Heat source: other | 32 | 6.4% | |
| 3 | Heat from powered equipment, other | 28 | 5.6% | |
| 4 | Arcing | 19 | 3.8% | |
| 5 | Hot or smoldering object, other | 19 | 3.8% | |
| 6 | Radiated, conducted heat from operating equipment | 18 | 3.6% | |
| 7 | Hot ember or ash | 14 | 2.8% | |
| 8 | Spark, ember or flame from operating equipment | 12 | 2.4% | |
| 9 | All other sources | 60 | 12.0% |
Largest single-incident losses in ZIP 94558 across 2021–2025. These 8 fires alone account for 1039% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $5,000,000 | Building fires | 2023 | Catastrophic |
| 2 | $2,000,000 | Water vehicle fire | 2023 | Major |
| 3 | $700,000 | Building fires | 2021 | Major |
| 4 | $600,000 | Building fires | 2023 | Major |
| 5 | $600,000 | Building fires | 2024 | Major |
| 6 | $550,000 | Building fires | 2021 | Major |
| 7 | $400,000 | Building fires | 2021 | Major |
| 8 | $400,000 | Building fires | 2021 | Major |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 94558.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Napa | 1,949 | |
| 2 | Yountville | 140 | |
| 3 | American Canyon | 2 | |
| 4 | Fairfield | 2 | |
| 5 | Clearlake | 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 — 2,445 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.