ZIP 94539 recorded 125 fire and hazmat incidents in 2025, 694 across 2021–2025. Primary county: Alameda County, CA. FEMA NRI rates wildfire risk here as Very High.
694 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 122 | |
| 2022 | 146 | |
| 2023 | 153 | |
| 2024 | 148 | |
| 2025 | 125 |
Jul peaks. Mar dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 94539 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Power line down | 79 | 11.4% | |
| 2 | Gas leak (natural gas or LPG) | 75 | 10.8% | |
| 3 | Passenger vehicle fire | 63 | 9.1% | |
| 4 | Cooking fire, confined to container | 58 | 8.4% | |
| 5 | Building fires | 50 | 7.2% |
For the 10 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 94539 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 35 | 24.1% | |
| 2 | Undetermined | 19 | 13.1% | |
| 3 | Cooking area, kitchen | 10 | 6.9% | |
| 4 | Other | 9 | 6.2% | |
| 5 | Highway, parking lot, street: on or near | 8 | 5.5% | |
| 6 | Outside area, other | 6 | 4.1% | |
| 7 | Vehicle storage area; garage, carport | 5 | 3.4% | |
| 8 | Vehicle area, other | 4 | 2.8% | |
| 9 | All other areas | 49 | 33.8% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 76 | 52.4% | |
| 2 | Heat from powered equipment, other | 18 | 12.4% | |
| 3 | Spark, ember or flame from operating equipment | 11 | 7.6% | |
| 4 | Radiated, conducted heat from operating equipment | 9 | 6.2% | |
| 5 | Arcing | 9 | 6.2% | |
| 6 | Heat source: other | 8 | 5.5% | |
| 7 | Heat, spark from friction | 2 | 1.4% | |
| 8 | Hot ember or ash | 2 | 1.4% | |
| 9 | All other sources | 10 | 6.9% |
Largest single-incident losses in ZIP 94539 across 2021–2025. These 8 fires alone account for 384% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $800,000 | Building fires | 2022 | Major |
| 2 | $570,000 | Building fires | 2025 | Major |
| 3 | $500,000 | Building fires | 2021 | Major |
| 4 | $433,780 | Building fires | 2023 | Major |
| 5 | $407,075 | Building fires | 2023 | Major |
| 6 | $300,000 | Building fires | 2022 | Major |
| 7 | $250,000 | Building fires | 2023 | Major |
| 8 | $150,000 | Building fires | 2025 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 94539.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Fremont | 693 |
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 — 694 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.