ZIP 94550 recorded 316 fire and hazmat incidents in 2025, 1,631 across 2021–2025. Primary county: Alameda County, CA. FEMA NRI rates wildfire risk here as Very High.
1,631 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 324 | |
| 2022 | 333 | |
| 2023 | 315 | |
| 2024 | 343 | |
| 2025 | 316 |
Jun peaks. Feb dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 94550 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Outside rubbish, trash or waste fire | 233 | 14.3% | |
| 2 | Gas leak (natural gas or LPG) | 152 | 9.3% | |
| 3 | Grass fire | 151 | 9.3% | |
| 4 | Electrical wiring/equipment problem, other | 133 | 8.2% | |
| 5 | Outside rubbish fire, other | 132 | 8.1% |
For the 20 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 94550 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 35 | 18.1% | |
| 2 | Cooking area, kitchen | 20 | 10.4% | |
| 3 | Engine area, running gear, wheel area | 17 | 8.8% | |
| 4 | Other | 15 | 7.8% | |
| 5 | Vehicle storage area; garage, carport | 12 | 6.2% | |
| 6 | Vehicle area, other | 10 | 5.2% | |
| 7 | Outside area, other | 10 | 5.2% | |
| 8 | Cargo/trunk area - all vehicles | 7 | 3.6% | |
| 9 | All other areas | 67 | 34.7% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 90 | 46.6% | |
| 2 | Heat from powered equipment, other | 39 | 20.2% | |
| 3 | Radiated, conducted heat from operating equipment | 14 | 7.3% | |
| 4 | Arcing | 10 | 5.2% | |
| 5 | Heat source: other | 8 | 4.1% | |
| 6 | Spark, ember or flame from operating equipment | 5 | 2.6% | |
| 7 | Hot or smoldering object, other | 5 | 2.6% | |
| 8 | Hot ember or ash | 5 | 2.6% | |
| 9 | All other sources | 17 | 8.8% |
Largest single-incident losses in ZIP 94550 across 2021–2025. These 8 fires alone account for 2754% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $3,700,000 | Building fires | 2022 | Major |
| 2 | $600,000 | Building fires | 2024 | Major |
| 3 | $500,000 | Building fires | 2023 | Major |
| 4 | $400,000 | Passenger vehicle fire | 2024 | Major |
| 5 | $350,000 | Building fires | 2024 | Major |
| 6 | $275,000 | Building fires | 2022 | Major |
| 7 | $180,000 | Building fires | 2023 | Significant |
| 8 | $150,000 | Building fires | 2024 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 94550.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Livermore | 1,573 | |
| 2 | Pleasanton | 5 | |
| 3 | Mountain House | 1 | |
| 4 | Tracy | 1 |
Some ZIPs span multiple counties. The primary above is the largest by population weight; secondary counties are below.
| County | State | Weight | |
|---|---|---|---|
| Santa Clara County | CA | 1.00 | FIPS 06085 |
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 — 1,631 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.