ZIP 37307 recorded 8 fire and hazmat incidents in 2025, 140 across 2021–2025. Primary county: Polk County, TN. FEMA NRI rates wildfire risk here as High.
140 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 11 | |
| 2022 | 29 | |
| 2023 | 57 | |
| 2024 | 35 | |
| 2025 | 8 |
Oct peaks. Sep dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 37307 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Aircraft standby | 23 | 16.4% | |
| 2 | Building fires | 20 | 14.3% | |
| 3 | Outside rubbish, trash or waste fire | 13 | 9.3% | |
| 4 | Passenger vehicle fire | 11 | 7.9% | |
| 5 | Brush, or brush and grass mixture fire | 10 | 7.1% |
For the 1 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 37307 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 47 | 48.5% | |
| 2 | Outside area, other | 20 | 20.6% | |
| 3 | Other | 5 | 5.2% | |
| 4 | Function area, other | 3 | 3.1% | |
| 5 | Vehicle area, other | 3 | 3.1% | |
| 6 | Engine area, running gear, wheel area | 2 | 2.1% | |
| 7 | Exterior, exposed surface | 2 | 2.1% | |
| 8 | Open area - outside; included are farmland, field | 2 | 2.1% | |
| 9 | All other areas | 13 | 13.4% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 71 | 73.2% | |
| 2 | Flame/torch used for lighting | 5 | 5.2% | |
| 3 | Heat source: other | 4 | 4.1% | |
| 4 | Hot ember or ash | 4 | 4.1% | |
| 5 | Arcing | 3 | 3.1% | |
| 6 | Heat from powered equipment, other | 2 | 2.1% | |
| 7 | Spark, ember or flame from operating equipment | 2 | 2.1% | |
| 8 | Heat, spark from friction | 1 | 1.0% | |
| 9 | All other sources | 5 | 5.2% |
Largest single-incident losses in ZIP 37307 across 2021–2025. These 8 fires alone account for 895% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $136,000 | Building fires | 2022 | Significant |
| 2 | $100,000 | Building fires | 2022 | Significant |
| 3 | $30,000 | Building fires | 2021 | Significant |
| 4 | $30,000 | Building fires | 2025 | Significant |
| 5 | $16,000 | Passenger vehicle fire | 2021 | Significant |
| 6 | $15,000 | Building fires | 2023 | Significant |
| 7 | $8,000 | Mobile property (vehicle) fire, other | 2025 | Significant |
| 8 | $5,000 | Building fires | 2021 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 37307.
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 — 140 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.