ZIP 77377 recorded 236 fire and hazmat incidents in 2025, 788 across 2021–2025. Primary county: Harris County, TX. FEMA NRI rates wildfire risk here as Very High.
788 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 84 | |
| 2022 | 117 | |
| 2023 | 152 | |
| 2024 | 199 | |
| 2025 | 236 |
Jul peaks. Dec dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 77377 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Gas leak (natural gas or LPG) | 167 | 21.2% | |
| 2 | Building fires | 90 | 11.4% | |
| 3 | Outside rubbish, trash or waste fire | 90 | 11.4% | |
| 4 | Grass fire | 62 | 7.9% | |
| 5 | Power line down | 44 | 5.6% |
For the 27 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 77377 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Open area - outside; included are farmland, field | 60 | 21.1% | |
| 2 | Undetermined | 50 | 17.6% | |
| 3 | Outside area, other | 44 | 15.5% | |
| 4 | Engine area, running gear, wheel area | 25 | 8.8% | |
| 5 | Highway, parking lot, street: on or near | 15 | 5.3% | |
| 6 | Other | 10 | 3.5% | |
| 7 | Vehicle storage area; garage, carport | 9 | 3.2% | |
| 8 | Courtyard, patio, porch, terrace | 8 | 2.8% | |
| 9 | All other areas | 63 | 22.2% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 144 | 50.7% | |
| 2 | Arcing | 17 | 6.0% | |
| 3 | Radiated, conducted heat from operating equipment | 16 | 5.6% | |
| 4 | Cigarette lighter | 15 | 5.3% | |
| 5 | Heat source: other | 10 | 3.5% | |
| 6 | Hot ember or ash | 10 | 3.5% | |
| 7 | Lightning | 10 | 3.5% | |
| 8 | Heat from powered equipment, other | 9 | 3.2% | |
| 9 | All other sources | 53 | 18.7% |
Largest single-incident losses in ZIP 77377 across 2021–2025. These 8 fires alone account for 163% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $700,000 | Building fires | 2025 | Major |
| 2 | $566,280 | Building fires | 2022 | Major |
| 3 | $266,620 | Building fires | 2023 | Major |
| 4 | $250,000 | Building fires | 2023 | Major |
| 5 | $202,756 | Building fires | 2025 | Significant |
| 6 | $200,000 | Building fires | 2023 | Significant |
| 7 | $150,000 | Building fires | 2023 | Significant |
| 8 | $150,000 | Building fires | 2025 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 77377.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Tomball | 779 | |
| 2 | Houston | 1 | |
| 3 | The Woodlands | 1 |
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 — 788 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.