ZIP 75021 recorded 29 fire and hazmat incidents in 2025, 95 across 2021–2025. Primary county: Grayson County, TX. FEMA NRI rates wildfire risk here as Very High.
95 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 3 | |
| 2022 | 18 | |
| 2023 | 21 | |
| 2024 | 24 | |
| 2025 | 29 |
Jan peaks. May dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 75021 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 15 | 15.8% | |
| 2 | Gas leak (natural gas or LPG) | 12 | 12.6% | |
| 3 | Grass fire | 10 | 10.5% | |
| 4 | Authorized controlled burning | 8 | 8.4% | |
| 5 | Electrical wiring/equipment problem, other | 7 | 7.4% |
For the 3 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 75021 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 9 | 28.1% | |
| 2 | Outside area, other | 8 | 25.0% | |
| 3 | Open area - outside; included are farmland, field | 4 | 12.5% | |
| 4 | Bedroom - < 5 persons; included are jail or prison | 2 | 6.2% | |
| 5 | Vehicle area, other | 2 | 6.2% | |
| 6 | Engine area, running gear, wheel area | 2 | 6.2% | |
| 7 | Function area, other | 1 | 3.1% | |
| 8 | Laundry area, wash house (laundry) | 1 | 3.1% | |
| 9 | All other areas | 3 | 9.4% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 18 | 56.2% | |
| 2 | Cigarette lighter | 3 | 9.4% | |
| 3 | Heat source: other | 2 | 6.2% | |
| 4 | Hot or smoldering object, other | 2 | 6.2% | |
| 5 | Hot ember or ash | 2 | 6.2% | |
| 6 | Match | 2 | 6.2% | |
| 7 | Arcing | 1 | 3.1% | |
| 8 | Fireworks | 1 | 3.1% | |
| 9 | All other sources | 1 | 3.1% |
Largest single-incident losses in ZIP 75021 across 2021–2025. These 8 fires alone account for 4786% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $5,000,000 | Fires in structures other than in a building | 2022 | Catastrophic |
| 2 | $60,000 | Building fires | 2025 | Significant |
| 3 | $50,000 | Building fires | 2024 | Significant |
| 4 | $50,000 | Passenger vehicle fire | 2025 | Significant |
| 5 | $30,000 | Fire in mobile home used as fixed residence | 2024 | Significant |
| 6 | $30,000 | Building fires | 2024 | Significant |
| 7 | $24,999 | Building fires | 2024 | Significant |
| 8 | $20,000 | Building fires | 2024 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 75021.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Denison | 84 |
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 — 95 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.