ZIP 77873 recorded 27 fire and hazmat incidents in 2025, 135 across 2021–2025. Primary county: Grimes County, TX. FEMA NRI rates wildfire risk here as Moderate.
135 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 26 | |
| 2022 | 28 | |
| 2023 | 36 | |
| 2024 | 18 | |
| 2025 | 27 |
Mar peaks. May dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 77873 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Brush, or brush and grass mixture fire | 25 | 18.5% | |
| 2 | Grass fire | 19 | 14.1% | |
| 3 | Trash or rubbish fire, contained | 12 | 8.9% | |
| 4 | Prescribed fire | 12 | 8.9% | |
| 5 | Building fires | 8 | 5.9% |
For the 2 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 77873 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 23 | 56.1% | |
| 2 | Open area - outside; included are farmland, field | 8 | 19.5% | |
| 3 | Wildland, woods | 5 | 12.2% | |
| 4 | Cargo/trunk area - all vehicles | 1 | 2.4% | |
| 5 | Engine area, running gear, wheel area | 1 | 2.4% | |
| 6 | Exterior, exposed surface | 1 | 2.4% | |
| 7 | Outside area, other | 1 | 2.4% | |
| 8 | Highway, parking lot, street: on or near | 1 | 2.4% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 23 | 56.1% | |
| 2 | Heat spread from another fire, other | 6 | 14.6% | |
| 3 | Hot ember or ash | 3 | 7.3% | |
| 4 | Heat from other open flame or smoking materials | 3 | 7.3% | |
| 5 | Flying brand, ember, spark | 3 | 7.3% | |
| 6 | Radiated, conducted heat from operating equipment | 1 | 2.4% | |
| 7 | Hot or smoldering object, other | 1 | 2.4% | |
| 8 | Flame/torch used for lighting | 1 | 2.4% |
Largest single-incident losses in ZIP 77873 across 2021–2025. These 6 fires alone account for 4200% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $200,000 | Building fires | 2021 | Significant |
| 2 | $150,000 | Road freight or transport vehicle fire | 2021 | Significant |
| 3 | $30,000 | Off-road vehicle or heavy equipment fire | 2021 | Significant |
| 4 | $25,000 | Passenger vehicle fire | 2021 | Significant |
| 5 | $10,000 | Passenger vehicle fire | 2025 | Significant |
| 6 | $5,000 | Building fires | 2021 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 77873.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Montgomery | 5 |
Some ZIPs span multiple counties. The primary above is the largest by population weight; secondary counties are below.
| County | State | Weight | |
|---|---|---|---|
| Walker County | TX | 1.00 | FIPS 48471 |
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 — 135 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.