ZIP 78665 recorded 100 fire and hazmat incidents in 2025, 695 across 2021–2025. Primary county: Williamson County, TX. FEMA NRI rates wildfire risk here as Very High.
695 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 125 | |
| 2022 | 145 | |
| 2023 | 172 | |
| 2024 | 153 | |
| 2025 | 100 |
Feb peaks. Dec dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 78665 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Gas leak (natural gas or LPG) | 152 | 21.9% | |
| 2 | Power line down | 58 | 8.3% | |
| 3 | Grass fire | 49 | 7.1% | |
| 4 | Building fires | 41 | 5.9% | |
| 5 | Cooking fire, confined to container | 37 | 5.3% |
For the 6 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 78665 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Outside area, other | 33 | 18.0% | |
| 2 | Engine area, running gear, wheel area | 25 | 13.7% | |
| 3 | Undetermined | 19 | 10.4% | |
| 4 | Vehicle storage area; garage, carport | 14 | 7.7% | |
| 5 | Other | 11 | 6.0% | |
| 6 | Highway, parking lot, street: on or near | 9 | 4.9% | |
| 7 | Open area - outside; included are farmland, field | 8 | 4.4% | |
| 8 | Courtyard, patio, porch, terrace | 7 | 3.8% | |
| 9 | All other areas | 57 | 31.1% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 101 | 55.2% | |
| 2 | Heat from powered equipment, other | 14 | 7.7% | |
| 3 | Arcing | 9 | 4.9% | |
| 4 | Hot ember or ash | 8 | 4.4% | |
| 5 | Heat source: other | 7 | 3.8% | |
| 6 | Fireworks | 6 | 3.3% | |
| 7 | Radiated, conducted heat from operating equipment | 5 | 2.7% | |
| 8 | Hot or smoldering object, other | 5 | 2.7% | |
| 9 | All other sources | 28 | 15.3% |
Largest single-incident losses in ZIP 78665 across 2021–2025. These 8 fires alone account for 1180% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $868,216 | Off-road vehicle or heavy equipment fire | 2023 | Major |
| 2 | $440,000 | Building fires | 2021 | Major |
| 3 | $425,000 | Building fires | 2021 | Major |
| 4 | $350,000 | Off-road vehicle or heavy equipment fire | 2021 | Major |
| 5 | $261,021 | Building fires | 2023 | Major |
| 6 | $250,000 | Building fires | 2023 | Major |
| 7 | $200,000 | Building fires | 2024 | Significant |
| 8 | $200,000 | Building fires | 2025 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 78665.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Round Rock | 688 | |
| 2 | Hutto | 4 |
Some ZIPs span multiple counties. The primary above is the largest by population weight; secondary counties are below.
| County | State | Weight | |
|---|---|---|---|
| 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 — 695 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.