ZIP 94509 recorded 11 fire and hazmat incidents in 2025, 31 across 2021–2025. Primary county: Contra Costa County, CA. FEMA NRI rates wildfire risk here as Very High.
31 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 4 | |
| 2022 | 4 | |
| 2023 | 8 | |
| 2024 | 4 | |
| 2025 | 11 |
Jun peaks. Jan dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 94509 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Forest, woods or wildland fire | 7 | 22.6% | |
| 2 | Grass fire | 7 | 22.6% | |
| 3 | Outside rubbish, trash or waste fire | 3 | 9.7% | |
| 4 | Hazardous condition, other | 3 | 9.7% | |
| 5 | Building fires | 2 | 6.5% |
For the 1 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 94509 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Wildland, woods | 3 | 60.0% | |
| 2 | Storage area, other | 1 | 20.0% | |
| 3 | Undetermined | 1 | 20.0% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 5 | 100.0% |
Largest single-incident losses in ZIP 94509 across 2021–2025. These 1 fires alone account for 0% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $120,000 | Cultivated grain or crop fire | 2024 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 94509.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Antioch | 24 | |
| 2 | Antioch | 1 | |
| 3 | Oakland | 1 | |
| 4 | Santa Rosa | 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 — 31 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.