ZIP 37309 recorded 26 fire and hazmat incidents in 2025, 240 across 2021–2025. Primary county: McMinn County, TN. FEMA NRI rates wildfire risk here as Moderate.
240 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 47 | |
| 2022 | 27 | |
| 2023 | 69 | |
| 2024 | 71 | |
| 2025 | 26 |
Mar peaks. May dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 37309 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 46 | 19.2% | |
| 2 | Brush, or brush and grass mixture fire | 29 | 12.1% | |
| 3 | Grass fire | 24 | 10.0% | |
| 4 | Aircraft standby | 19 | 7.9% | |
| 5 | Passenger vehicle fire | 18 | 7.5% |
For the 8 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 37309 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 60 | 65.2% | |
| 2 | Outside area, other | 9 | 9.8% | |
| 3 | Engine area, running gear, wheel area | 5 | 5.4% | |
| 4 | Wildland, woods | 5 | 5.4% | |
| 5 | Other | 2 | 2.2% | |
| 6 | Cooking area, kitchen | 2 | 2.2% | |
| 7 | Highway, parking lot, street: on or near | 2 | 2.2% | |
| 8 | Common room, den, family room, living room, lounge | 1 | 1.1% | |
| 9 | All other areas | 6 | 6.5% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 77 | 83.7% | |
| 2 | Arcing | 4 | 4.3% | |
| 3 | Heat source: other | 3 | 3.3% | |
| 4 | Heat from powered equipment, other | 2 | 2.2% | |
| 5 | Radiated, conducted heat from operating equipment | 2 | 2.2% | |
| 6 | Spark, ember or flame from operating equipment | 1 | 1.1% | |
| 7 | Heat, spark from friction | 1 | 1.1% | |
| 8 | Cigarette | 1 | 1.1% | |
| 9 | All other sources | 1 | 1.1% |
Largest single-incident losses in ZIP 37309 across 2021–2025. These 8 fires alone account for 119% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $350,000 | Road freight or transport vehicle fire | 2025 | Major |
| 2 | $350,000 | Building fires | 2025 | Major |
| 3 | $120,000 | Road freight or transport vehicle fire | 2021 | Significant |
| 4 | $65,000 | Road freight or transport vehicle fire | 2025 | Significant |
| 5 | $20,000 | Building fires | 2021 | Significant |
| 6 | $10,000 | Building fires | 2021 | Significant |
| 7 | $8,000 | Passenger vehicle fire | 2025 | Significant |
| 8 | $1,000 | Brush, or brush and grass mixture fire | 2025 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 37309.
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 — 240 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.