ZIP 78237 recorded 259 fire and hazmat incidents in 2025, 1,538 across 2021–2025. Primary county: Bexar County, TX. FEMA NRI rates wildfire risk here as Very High.
1,538 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 328 | |
| 2022 | 269 | |
| 2023 | 371 | |
| 2024 | 311 | |
| 2025 | 259 |
Dec peaks. May dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 78237 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Unauthorized burning | 426 | 27.7% | |
| 2 | Outside rubbish, trash or waste fire | 143 | 9.3% | |
| 3 | Gas leak (natural gas or LPG) | 114 | 7.4% | |
| 4 | Building fires | 112 | 7.3% | |
| 5 | Brush, or brush and grass mixture fire | 89 | 5.8% |
For the 18 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 78237 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 63 | 20.9% | |
| 2 | Engine area, running gear, wheel area | 51 | 16.9% | |
| 3 | Outside area, other | 21 | 7.0% | |
| 4 | Bedroom - < 5 persons; included are jail or prison | 14 | 4.6% | |
| 5 | Wall surface: exterior | 13 | 4.3% | |
| 6 | Exterior, exposed surface | 9 | 3.0% | |
| 7 | Common room, den, family room, living room, lounge | 8 | 2.6% | |
| 8 | Cooking area, kitchen | 8 | 2.6% | |
| 9 | All other areas | 115 | 38.1% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 131 | 43.4% | |
| 2 | Heat from powered equipment, other | 44 | 14.6% | |
| 3 | Heat source: other | 34 | 11.3% | |
| 4 | Arcing | 24 | 7.9% | |
| 5 | Radiated, conducted heat from operating equipment | 13 | 4.3% | |
| 6 | Spark, ember or flame from operating equipment | 7 | 2.3% | |
| 7 | Hot or smoldering object, other | 7 | 2.3% | |
| 8 | Cigarette | 6 | 2.0% | |
| 9 | All other sources | 36 | 11.9% |
Largest single-incident losses in ZIP 78237 across 2021–2025. These 8 fires alone account for 167% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $684,019 | Building fires | 2025 | Major |
| 2 | $211,909 | Building fires | 2024 | Significant |
| 3 | $200,000 | Building fires | 2021 | Significant |
| 4 | $167,226 | Building fires | 2023 | Significant |
| 5 | $150,000 | Building fires | 2022 | Significant |
| 6 | $140,000 | Building fires | 2023 | Significant |
| 7 | $111,179 | Building fires | 2023 | Significant |
| 8 | $104,474 | Building fires | 2024 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 78237.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | San Antonio | 1,538 |
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 — 1,538 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.