ZIP 78621 recorded 319 fire and hazmat incidents in 2025, 1,303 across 2021–2025. Primary county: Bastrop County, TX. FEMA NRI rates wildfire risk here as High.
1,303 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 279 | |
| 2022 | 233 | |
| 2023 | 92 | |
| 2024 | 380 | |
| 2025 | 319 |
Oct peaks. Dec dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 78621 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Unauthorized burning | 224 | 17.2% | |
| 2 | Authorized controlled burning | 172 | 13.2% | |
| 3 | Gas leak (natural gas or LPG) | 117 | 9.0% | |
| 4 | Grass fire | 112 | 8.6% | |
| 5 | Power line down | 91 | 7.0% |
For the 28 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 78621 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 95 | 32.6% | |
| 2 | Outside area, other | 68 | 23.4% | |
| 3 | Open area - outside; included are farmland, field | 35 | 12.0% | |
| 4 | Vehicle area, other | 15 | 5.2% | |
| 5 | Engine area, running gear, wheel area | 13 | 4.5% | |
| 6 | Highway, parking lot, street: on or near | 12 | 4.1% | |
| 7 | Cooking area, kitchen | 8 | 2.7% | |
| 8 | Other | 6 | 2.1% | |
| 9 | All other areas | 39 | 13.4% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 180 | 61.9% | |
| 2 | Heat source: other | 15 | 5.2% | |
| 3 | Spark, ember or flame from operating equipment | 14 | 4.8% | |
| 4 | Heat from powered equipment, other | 12 | 4.1% | |
| 5 | Arcing | 10 | 3.4% | |
| 6 | Heat, spark from friction | 8 | 2.7% | |
| 7 | Hot ember or ash | 8 | 2.7% | |
| 8 | Heat from direct flame, convection currents | 8 | 2.7% | |
| 9 | All other sources | 36 | 12.4% |
Largest single-incident losses in ZIP 78621 across 2021–2025. These 8 fires alone account for 102% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $400,000 | Building fires | 2025 | Major |
| 2 | $200,000 | Building fires | 2025 | Significant |
| 3 | $100,000 | Camper or recreational vehicle (RV) fire | 2025 | Significant |
| 4 | $80,000 | Off-road vehicle or heavy equipment fire | 2024 | Significant |
| 5 | $65,000 | Fires in structures other than in a building | 2025 | Significant |
| 6 | $60,000 | Passenger vehicle fire | 2024 | Significant |
| 7 | $50,000 | Building fires | 2024 | Significant |
| 8 | $50,000 | Road freight or transport vehicle fire | 2025 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 78621.
Some ZIPs span multiple counties. The primary above is the largest by population weight; secondary counties are below.
| County | State | Weight | |
|---|---|---|---|
| Williamson County | TX | 1.00 | FIPS 48491 |
| Travis County | TX | 0.50 | FIPS 48453 |
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 — 1,303 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.