ZIP 37806 recorded 17 fire and hazmat incidents in 2025, 89 across 2021–2025. Primary county: Knox County, TN. FEMA NRI rates wildfire risk here as High.
89 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 11 | |
| 2022 | 9 | |
| 2023 | 24 | |
| 2024 | 28 | |
| 2025 | 17 |
Apr peaks. Jun dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 37806 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Unauthorized burning | 18 | 20.2% | |
| 2 | Building fires | 13 | 14.6% | |
| 3 | Brush, or brush and grass mixture fire | 12 | 13.5% | |
| 4 | Power line down | 7 | 7.9% | |
| 5 | Authorized controlled burning | 7 | 7.9% |
For the 1 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 37806 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Open area - outside; included are farmland, field | 13 | 36.1% | |
| 2 | Undetermined | 7 | 19.4% | |
| 3 | Engine area, running gear, wheel area | 5 | 13.9% | |
| 4 | Cooking area, kitchen | 3 | 8.3% | |
| 5 | Highway, parking lot, street: on or near | 2 | 5.6% | |
| 6 | Egress/exit, other | 1 | 2.8% | |
| 7 | Common room, den, family room, living room, lounge | 1 | 2.8% | |
| 8 | Vehicle storage area; garage, carport | 1 | 2.8% | |
| 9 | All other areas | 3 | 8.3% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 26 | 72.2% | |
| 2 | Spark, ember or flame from operating equipment | 2 | 5.6% | |
| 3 | Heat spread from another fire, other | 2 | 5.6% | |
| 4 | Heat from powered equipment, other | 1 | 2.8% | |
| 5 | Radiated, conducted heat from operating equipment | 1 | 2.8% | |
| 6 | Arcing | 1 | 2.8% | |
| 7 | Hot ember or ash | 1 | 2.8% | |
| 8 | Cigarette | 1 | 2.8% | |
| 9 | All other sources | 1 | 2.8% |
Largest single-incident losses in ZIP 37806 across 2021–2025. These 8 fires alone account for 603% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $63,400 | Building fires | 2021 | Significant |
| 2 | $61,317 | Building fires | 2023 | Significant |
| 3 | $40,000 | Building fires | 2025 | Significant |
| 4 | $24,667 | Building fires | 2023 | Significant |
| 5 | $20,000 | Passenger vehicle fire | 2024 | Significant |
| 6 | $20,000 | Building fires | 2024 | Significant |
| 7 | $14,000 | Building fires | 2021 | Significant |
| 8 | $9,999 | Building fires | 2024 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 37806.
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 — 89 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.