ZIP 77021 recorded 222 fire and hazmat incidents in 2025, 1,010 across 2021–2025. Primary county: Harris County, TX. FEMA NRI rates wildfire risk here as Very High.
1,010 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 149 | |
| 2022 | 171 | |
| 2023 | 226 | |
| 2024 | 242 | |
| 2025 | 222 |
Aug peaks. Feb dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 77021 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Gas leak (natural gas or LPG) | 127 | 12.6% | |
| 2 | Building fires | 121 | 12.0% | |
| 3 | Passenger vehicle fire | 95 | 9.4% | |
| 4 | Outside rubbish, trash or waste fire | 72 | 7.1% | |
| 5 | Electrical wiring/equipment problem, other | 71 | 7.0% |
For the 26 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 77021 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 147 | 24.6% | |
| 2 | Outside area, other | 127 | 21.3% | |
| 3 | Engine area, running gear, wheel area | 63 | 10.6% | |
| 4 | Chute/container - trash, rubbish, waste | 37 | 6.2% | |
| 5 | Cooking area, kitchen | 32 | 5.4% | |
| 6 | Other | 20 | 3.4% | |
| 7 | Bedroom - < 5 persons; included are jail or prison | 19 | 3.2% | |
| 8 | Vehicle area, other | 17 | 2.8% | |
| 9 | All other areas | 135 | 22.6% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 267 | 44.7% | |
| 2 | Heat from powered equipment, other | 60 | 10.1% | |
| 3 | Arcing | 41 | 6.9% | |
| 4 | Hot or smoldering object, other | 40 | 6.7% | |
| 5 | Cigarette | 29 | 4.9% | |
| 6 | Spark, ember or flame from operating equipment | 23 | 3.9% | |
| 7 | Cigarette lighter | 21 | 3.5% | |
| 8 | Hot ember or ash | 17 | 2.8% | |
| 9 | All other sources | 99 | 16.6% |
Largest single-incident losses in ZIP 77021 across 2021–2025. These 8 fires alone account for 117% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $250,000 | Building fires | 2023 | Major |
| 2 | $200,000 | Building fires | 2025 | Significant |
| 3 | $200,000 | Building fires | 2025 | Significant |
| 4 | $180,000 | Passenger vehicle fire | 2022 | Significant |
| 5 | $150,000 | Building fires | 2024 | Significant |
| 6 | $150,000 | Road freight or transport vehicle fire | 2024 | Significant |
| 7 | $150,000 | Building fires | 2025 | Significant |
| 8 | $107,575 | Building fires | 2024 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 77021.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Houston | 1,008 |
Some ZIPs span multiple counties. The primary above is the largest by population weight; secondary counties are below.
| County | State | Weight | |
|---|---|---|---|
| Fort Bend County | TX | 0.50 | FIPS 48157 |
| Montgomery County | TX | 0.50 | FIPS 48339 |
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 — 1,010 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.