ZIP 78203 recorded 45 fire and hazmat incidents in 2025, 199 across 2021–2025. Primary county: Bexar County, TX. FEMA NRI rates wildfire risk here as Very High.
199 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 46 | |
| 2022 | 31 | |
| 2023 | 41 | |
| 2024 | 36 | |
| 2025 | 45 |
Dec peaks. Apr dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 78203 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Unauthorized burning | 52 | 26.1% | |
| 2 | Building fires | 25 | 12.6% | |
| 3 | Outside rubbish fire, other | 18 | 9.0% | |
| 4 | Trash or rubbish fire, contained | 11 | 5.5% | |
| 5 | Power line down | 11 | 5.5% |
For the 5 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 78203 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Bedroom - < 5 persons; included are jail or prison | 6 | 13.0% | |
| 2 | Undetermined | 6 | 13.0% | |
| 3 | Cooking area, kitchen | 4 | 8.7% | |
| 4 | Other | 3 | 6.5% | |
| 5 | Attic: vacant, crawl space above top story, cupola | 3 | 6.5% | |
| 6 | Function area, other | 2 | 4.3% | |
| 7 | Laundry area, wash house (laundry) | 2 | 4.3% | |
| 8 | Storage area, other | 2 | 4.3% | |
| 9 | All other areas | 18 | 39.1% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 21 | 45.7% | |
| 2 | Heat from powered equipment, other | 5 | 10.9% | |
| 3 | Heat source: other | 4 | 8.7% | |
| 4 | Arcing | 4 | 8.7% | |
| 5 | Hot or smoldering object, other | 2 | 4.3% | |
| 6 | Match | 2 | 4.3% | |
| 7 | Spark, ember or flame from operating equipment | 1 | 2.2% | |
| 8 | Radiated, conducted heat from operating equipment | 1 | 2.2% | |
| 9 | All other sources | 6 | 13.0% |
Largest single-incident losses in ZIP 78203 across 2021–2025. These 8 fires alone account for 385% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $418,713 | Building fires | 2022 | Major |
| 2 | $120,559 | Building fires | 2023 | Significant |
| 3 | $90,202 | Building fires | 2025 | Significant |
| 4 | $68,665 | Building fires | 2025 | Significant |
| 5 | $43,508 | Building fires | 2025 | Significant |
| 6 | $29,877 | Building fires | 2024 | Significant |
| 7 | $22,180 | Building fires | 2023 | Significant |
| 8 | $20,000 | Passenger vehicle fire | 2022 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 78203.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | San Antonio | 199 |
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 — 199 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.