ZIP 78242 recorded 170 fire and hazmat incidents in 2025, 787 across 2021–2025. Primary county: Bexar County, TX. FEMA NRI rates wildfire risk here as Very High.
787 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 136 | |
| 2022 | 138 | |
| 2023 | 173 | |
| 2024 | 170 | |
| 2025 | 170 |
Dec peaks. May dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 78242 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Unauthorized burning | 135 | 17.2% | |
| 2 | Grass fire | 85 | 10.8% | |
| 3 | Brush, or brush and grass mixture fire | 77 | 9.8% | |
| 4 | Outside rubbish, trash or waste fire | 61 | 7.8% | |
| 5 | Outside rubbish fire, other | 56 | 7.1% |
For the 11 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 78242 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 51 | 27.3% | |
| 2 | Engine area, running gear, wheel area | 36 | 19.3% | |
| 3 | Cooking area, kitchen | 13 | 7.0% | |
| 4 | Common room, den, family room, living room, lounge | 7 | 3.7% | |
| 5 | Storage: supplies or tools; dead storage | 6 | 3.2% | |
| 6 | Vehicle area, other | 6 | 3.2% | |
| 7 | Outside area, other | 6 | 3.2% | |
| 8 | Bedroom - < 5 persons; included are jail or prison | 5 | 2.7% | |
| 9 | All other areas | 57 | 30.5% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 106 | 56.7% | |
| 2 | Heat source: other | 19 | 10.2% | |
| 3 | Heat from powered equipment, other | 16 | 8.6% | |
| 4 | Arcing | 12 | 6.4% | |
| 5 | Spark, ember or flame from operating equipment | 7 | 3.7% | |
| 6 | Radiated, conducted heat from operating equipment | 6 | 3.2% | |
| 7 | Hot ember or ash | 4 | 2.1% | |
| 8 | Heat from direct flame, convection currents | 4 | 2.1% | |
| 9 | All other sources | 13 | 7.0% |
Largest single-incident losses in ZIP 78242 across 2021–2025. These 8 fires alone account for 166% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $179,380 | Building fires | 2023 | Significant |
| 2 | $111,777 | Building fires | 2025 | Significant |
| 3 | $107,349 | Building fires | 2024 | Significant |
| 4 | $81,297 | Building fires | 2022 | Significant |
| 5 | $80,956 | Building fires | 2024 | Significant |
| 6 | $80,929 | Building fires | 2025 | Significant |
| 7 | $75,000 | Building fires | 2024 | Significant |
| 8 | $70,000 | Building fires | 2021 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 78242.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | San Antonio | 786 | |
| 2 | Lackland AFB | 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 — 787 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.