ZIP 78257 recorded 48 fire and hazmat incidents in 2025, 261 across 2021–2025. Primary county: Bexar County, TX. FEMA NRI rates wildfire risk here as Very High.
261 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 52 | |
| 2022 | 64 | |
| 2023 | 58 | |
| 2024 | 39 | |
| 2025 | 48 |
Jul peaks. May dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 78257 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Gas leak (natural gas or LPG) | 35 | 13.4% | |
| 2 | Unauthorized burning | 31 | 11.9% | |
| 3 | Passenger vehicle fire | 22 | 8.4% | |
| 4 | Brush, or brush and grass mixture fire | 17 | 6.5% | |
| 5 | Grass fire | 17 | 6.5% |
For the 4 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 78257 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 22 | 38.6% | |
| 2 | Cargo/trunk area - all vehicles | 5 | 8.8% | |
| 3 | Outside area, other | 3 | 5.3% | |
| 4 | Open area - outside; included are farmland, field | 3 | 5.3% | |
| 5 | Undetermined | 3 | 5.3% | |
| 6 | Exterior balcony, unenclosed porch | 2 | 3.5% | |
| 7 | Attic: vacant, crawl space above top story, cupola | 2 | 3.5% | |
| 8 | Vehicle area, other | 2 | 3.5% | |
| 9 | All other areas | 15 | 26.3% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 14 | 24.6% | |
| 2 | Heat from powered equipment, other | 8 | 14.0% | |
| 3 | Heat source: other | 5 | 8.8% | |
| 4 | Radiated, conducted heat from operating equipment | 5 | 8.8% | |
| 5 | Hot or smoldering object, other | 5 | 8.8% | |
| 6 | Arcing | 4 | 7.0% | |
| 7 | Lightning | 3 | 5.3% | |
| 8 | Heat, spark from friction | 2 | 3.5% | |
| 9 | All other sources | 11 | 19.3% |
Largest single-incident losses in ZIP 78257 across 2021–2025. These 8 fires alone account for 315% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $150,000 | Building fires | 2022 | Significant |
| 2 | $140,000 | Off-road vehicle or heavy equipment fire | 2025 | Significant |
| 3 | $120,000 | Building fires | 2021 | Significant |
| 4 | $60,000 | Passenger vehicle fire | 2021 | Significant |
| 5 | $60,000 | Passenger vehicle fire | 2025 | Significant |
| 6 | $50,000 | Mobile property (vehicle) fire, other | 2021 | Significant |
| 7 | $30,000 | Passenger vehicle fire | 2023 | Significant |
| 8 | $25,000 | Passenger vehicle fire | 2023 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 78257.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | San Antonio | 219 | |
| 2 | Shavano Park | 1 |
Some ZIPs span multiple counties. The primary above is the largest by population weight; secondary counties are below.
| County | State | Weight | |
|---|---|---|---|
| Medina County | TX | 0.50 | FIPS 48325 |
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 — 261 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.