ZIP 78112 recorded 225 fire and hazmat incidents in 2025, 946 across 2021–2025. Primary county: Bexar County, TX. FEMA NRI rates wildfire risk here as Very High.
946 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 139 | |
| 2022 | 231 | |
| 2023 | 171 | |
| 2024 | 180 | |
| 2025 | 225 |
Aug peaks. May dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 78112 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Unauthorized burning | 236 | 24.9% | |
| 2 | Grass fire | 106 | 11.2% | |
| 3 | Brush, or brush and grass mixture fire | 103 | 10.9% | |
| 4 | Building fires | 82 | 8.7% | |
| 5 | Outside rubbish, trash or waste fire | 52 | 5.5% |
For the 6 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 78112 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 59 | 27.1% | |
| 2 | Engine area, running gear, wheel area | 34 | 15.6% | |
| 3 | Outside area, other | 24 | 11.0% | |
| 4 | Other | 18 | 8.3% | |
| 5 | Highway, parking lot, street: on or near | 13 | 6.0% | |
| 6 | Open area - outside; included are farmland, field | 10 | 4.6% | |
| 7 | Wildland, woods | 9 | 4.1% | |
| 8 | Common room, den, family room, living room, lounge | 5 | 2.3% | |
| 9 | All other areas | 46 | 21.1% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 113 | 51.8% | |
| 2 | Heat source: other | 20 | 9.2% | |
| 3 | Heat from powered equipment, other | 14 | 6.4% | |
| 4 | Radiated, conducted heat from operating equipment | 13 | 6.0% | |
| 5 | Hot or smoldering object, other | 13 | 6.0% | |
| 6 | Arcing | 9 | 4.1% | |
| 7 | Spark, ember or flame from operating equipment | 6 | 2.8% | |
| 8 | Heat from other open flame or smoking materials | 6 | 2.8% | |
| 9 | All other sources | 24 | 11.0% |
Largest single-incident losses in ZIP 78112 across 2021–2025. These 8 fires alone account for 1312% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $700,000 | Road freight or transport vehicle fire | 2024 | Major |
| 2 | $400,000 | Building fires | 2021 | Major |
| 3 | $200,000 | Road freight or transport vehicle fire | 2022 | Significant |
| 4 | $200,000 | Building fires | 2023 | Significant |
| 5 | $200,000 | Building fires | 2023 | Significant |
| 6 | $200,000 | Brush, or brush and grass mixture fire | 2024 | Significant |
| 7 | $150,000 | Building fires | 2024 | Significant |
| 8 | $150,000 | Building fires | 2024 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 78112.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Sandy Oaks | 297 | |
| 2 | Elmendorf | 228 | |
| 3 | San Antonio | 148 |
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 |
| Wilson County | TX | 0.50 | FIPS 48493 |
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 — 946 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.