ZIP 77423 recorded 137 fire and hazmat incidents in 2025, 562 across 2021–2025. Primary county: Waller County, TX. FEMA NRI rates wildfire risk here as High.
562 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 59 | |
| 2022 | 100 | |
| 2023 | 107 | |
| 2024 | 159 | |
| 2025 | 137 |
Oct peaks. Apr dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 77423 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Grass fire | 62 | 11.0% | |
| 2 | Gas leak (natural gas or LPG) | 59 | 10.5% | |
| 3 | Passenger vehicle fire | 54 | 9.6% | |
| 4 | Building fires | 46 | 8.2% | |
| 5 | Outside rubbish, trash or waste fire | 35 | 6.2% |
For the 11 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 77423 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 47 | 20.5% | |
| 2 | Engine area, running gear, wheel area | 36 | 15.7% | |
| 3 | Open area - outside; included are farmland, field | 29 | 12.7% | |
| 4 | Outside area, other | 27 | 11.8% | |
| 5 | Vehicle area, other | 15 | 6.6% | |
| 6 | Highway, parking lot, street: on or near | 13 | 5.7% | |
| 7 | Other | 10 | 4.4% | |
| 8 | Cooking area, kitchen | 9 | 3.9% | |
| 9 | All other areas | 43 | 18.8% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 116 | 50.7% | |
| 2 | Arcing | 20 | 8.7% | |
| 3 | Heat from powered equipment, other | 12 | 5.2% | |
| 4 | Spark, ember or flame from operating equipment | 11 | 4.8% | |
| 5 | Heat source: other | 8 | 3.5% | |
| 6 | Radiated, conducted heat from operating equipment | 7 | 3.1% | |
| 7 | Hot ember or ash | 7 | 3.1% | |
| 8 | Hot or smoldering object, other | 5 | 2.2% | |
| 9 | All other sources | 43 | 18.8% |
Largest single-incident losses in ZIP 77423 across 2021–2025. These 8 fires alone account for 177% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $300,000 | Building fires | 2025 | Major |
| 2 | $120,000 | Road freight or transport vehicle fire | 2024 | Significant |
| 3 | $100,000 | Road freight or transport vehicle fire | 2024 | Significant |
| 4 | $100,000 | Building fires | 2024 | Significant |
| 5 | $85,000 | Building fires | 2023 | Significant |
| 6 | $79,780 | Building fires | 2025 | Significant |
| 7 | $75,000 | Road freight or transport vehicle fire | 2024 | Significant |
| 8 | $60,000 | Passenger vehicle fire | 2021 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 77423.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Brookshire | 356 | |
| 2 | Pattison | 52 | |
| 3 | Katy | 33 | |
| 4 | Fulshear | 9 |
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 — 562 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.