ZIP 78073 recorded 153 fire and hazmat incidents in 2025, 866 across 2021–2025. Primary county: Bexar County, TX. FEMA NRI rates wildfire risk here as Very High.
866 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 171 | |
| 2022 | 220 | |
| 2023 | 170 | |
| 2024 | 152 | |
| 2025 | 153 |
Jan peaks. Dec dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 78073 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Unauthorized burning | 275 | 31.8% | |
| 2 | Grass fire | 103 | 11.9% | |
| 3 | Brush, or brush and grass mixture fire | 90 | 10.4% | |
| 4 | Building fires | 62 | 7.2% | |
| 5 | Passenger vehicle fire | 57 | 6.6% |
For the 10 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 78073 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 41 | 23.0% | |
| 2 | Engine area, running gear, wheel area | 40 | 22.5% | |
| 3 | Outside area, other | 17 | 9.6% | |
| 4 | Other | 13 | 7.3% | |
| 5 | Vehicle area, other | 11 | 6.2% | |
| 6 | Highway, parking lot, street: on or near | 9 | 5.1% | |
| 7 | Cooking area, kitchen | 7 | 3.9% | |
| 8 | Open area - outside; included are farmland, field | 5 | 2.8% | |
| 9 | All other areas | 35 | 19.7% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 95 | 53.4% | |
| 2 | Hot or smoldering object, other | 15 | 8.4% | |
| 3 | Heat from powered equipment, other | 13 | 7.3% | |
| 4 | Heat source: other | 11 | 6.2% | |
| 5 | Arcing | 9 | 5.1% | |
| 6 | Spark, ember or flame from operating equipment | 5 | 2.8% | |
| 7 | Heat from undetermined smoking material | 5 | 2.8% | |
| 8 | Radiated, conducted heat from operating equipment | 4 | 2.2% | |
| 9 | All other sources | 21 | 11.8% |
Largest single-incident losses in ZIP 78073 across 2021–2025. These 8 fires alone account for 383% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $275,000 | Building fires | 2023 | Major |
| 2 | $250,000 | Building fires | 2024 | Major |
| 3 | $200,000 | Building fires | 2024 | Significant |
| 4 | $200,000 | Building fires | 2024 | Significant |
| 5 | $150,000 | Building fires | 2024 | Significant |
| 6 | $100,000 | Mobile property (vehicle) fire, other | 2021 | Significant |
| 7 | $100,000 | Fire in motor home, camper, recreational vehicle | 2024 | Significant |
| 8 | $100,000 | Building fires | 2024 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 78073.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Von Ormy | 218 | |
| 2 | San Antonio | 137 | |
| 3 | Somerset | 6 | |
| 4 | Natalia | 1 | |
| 5 | Poteet | 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 — 866 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.