ZIP 94536 recorded 275 fire and hazmat incidents in 2025, 1,366 across 2021–2025. Primary county: Alameda County, CA. FEMA NRI rates wildfire risk here as Very High.
1,366 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 230 | |
| 2022 | 268 | |
| 2023 | 311 | |
| 2024 | 282 | |
| 2025 | 275 |
Oct peaks. Sep dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 94536 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Natural vegetation fire, other | 142 | 10.4% | |
| 2 | Gas leak (natural gas or LPG) | 127 | 9.3% | |
| 3 | Cooking fire, confined to container | 125 | 9.2% | |
| 4 | Outside rubbish fire, other | 120 | 8.8% | |
| 5 | Power line down | 120 | 8.8% |
For the 17 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 94536 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 26 | 12.8% | |
| 2 | Engine area, running gear, wheel area | 18 | 8.9% | |
| 3 | Cooking area, kitchen | 15 | 7.4% | |
| 4 | Outside area, other | 15 | 7.4% | |
| 5 | Vehicle storage area; garage, carport | 14 | 6.9% | |
| 6 | Other | 12 | 5.9% | |
| 7 | Vehicle area, other | 11 | 5.4% | |
| 8 | Laundry area, wash house (laundry) | 8 | 3.9% | |
| 9 | All other areas | 84 | 41.4% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 103 | 50.7% | |
| 2 | Heat from powered equipment, other | 25 | 12.3% | |
| 3 | Arcing | 16 | 7.9% | |
| 4 | Heat source: other | 13 | 6.4% | |
| 5 | Radiated, conducted heat from operating equipment | 8 | 3.9% | |
| 6 | Hot or smoldering object, other | 5 | 2.5% | |
| 7 | Heat from other open flame or smoking materials | 5 | 2.5% | |
| 8 | Heat from direct flame, convection currents | 5 | 2.5% | |
| 9 | All other sources | 23 | 11.3% |
Largest single-incident losses in ZIP 94536 across 2021–2025. These 8 fires alone account for 256% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $1,484,080 | Building fires | 2023 | Major |
| 2 | $1,291,145 | Building fires | 2025 | Major |
| 3 | $1,074,100 | Building fires | 2021 | Major |
| 4 | $1,000,000 | Building fires | 2025 | Major |
| 5 | $765,000 | Building fires | 2022 | Major |
| 6 | $713,000 | Building fires | 2024 | Major |
| 7 | $300,000 | Building fires | 2022 | Major |
| 8 | $200,000 | Building fires | 2024 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 94536.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Fremont | 1,354 | |
| 2 | Union City | 10 |
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 — 1,366 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.