ZIP 94121 recorded 188 fire and hazmat incidents in 2025, 1,008 across 2021–2025. Primary county: San Francisco County, CA.
1,008 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 230 | |
| 2022 | 166 | |
| 2023 | 229 | |
| 2024 | 195 | |
| 2025 | 188 |
Jan peaks. Sep dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 94121 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Electrical wiring/equipment problem, other | 188 | 18.7% | |
| 2 | Power line down | 129 | 12.8% | |
| 3 | Outside rubbish, trash or waste fire | 108 | 10.7% | |
| 4 | Outside rubbish fire, other | 91 | 9.0% | |
| 5 | Gas leak (natural gas or LPG) | 68 | 6.7% |
For the 12 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 94121 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 29 | 18.7% | |
| 2 | Other | 22 | 14.2% | |
| 3 | Cooking area, kitchen | 16 | 10.3% | |
| 4 | Outside area, other | 16 | 10.3% | |
| 5 | Vehicle storage area; garage, carport | 8 | 5.2% | |
| 6 | Wildland, woods | 7 | 4.5% | |
| 7 | Open area - outside; included are farmland, field | 6 | 3.9% | |
| 8 | Bedroom - < 5 persons; included are jail or prison | 4 | 2.6% | |
| 9 | All other areas | 47 | 30.3% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 64 | 41.3% | |
| 2 | Heat from powered equipment, other | 15 | 9.7% | |
| 3 | Hot or smoldering object, other | 13 | 8.4% | |
| 4 | Heat source: other | 12 | 7.7% | |
| 5 | Arcing | 8 | 5.2% | |
| 6 | Radiated, conducted heat from operating equipment | 6 | 3.9% | |
| 7 | Hot ember or ash | 6 | 3.9% | |
| 8 | Heat from other open flame or smoking materials | 5 | 3.2% | |
| 9 | All other sources | 26 | 16.8% |
Largest single-incident losses in ZIP 94121 across 2021–2025. These 8 fires alone account for 225% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $1,800,000 | Building fires | 2023 | Major |
| 2 | $1,200,000 | Building fires | 2025 | Major |
| 3 | $450,000 | Building fires | 2023 | Major |
| 4 | $400,000 | Building fires | 2025 | Major |
| 5 | $200,000 | Building fires | 2023 | Significant |
| 6 | $150,000 | Building fires | 2023 | Significant |
| 7 | $100,000 | Building fires | 2022 | Significant |
| 8 | $100,000 | Building fires | 2023 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 94121.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | San Francisco | 995 |
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 — 1,008 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.