ZIP 37846 recorded 39 fire and hazmat incidents in 2025, 333 across 2021–2025. Primary county: Loudon County, TN. FEMA NRI rates wildfire risk here as Moderate.
333 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 47 | |
| 2022 | 82 | |
| 2023 | 90 | |
| 2024 | 75 | |
| 2025 | 39 |
Mar peaks. Aug dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 37846 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 90 | 27.0% | |
| 2 | Brush, or brush and grass mixture fire | 49 | 14.7% | |
| 3 | Unauthorized burning | 28 | 8.4% | |
| 4 | Grass fire | 26 | 7.8% | |
| 5 | Authorized controlled burning | 22 | 6.6% |
For the 10 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 37846 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Open area - outside; included are farmland, field | 28 | 18.3% | |
| 2 | Undetermined | 21 | 13.7% | |
| 3 | Outside area, other | 20 | 13.1% | |
| 4 | Engine area, running gear, wheel area | 15 | 9.8% | |
| 5 | Wildland, woods | 12 | 7.8% | |
| 6 | Highway, parking lot, street: on or near | 11 | 7.2% | |
| 7 | Cooking area, kitchen | 6 | 3.9% | |
| 8 | Vehicle storage area; garage, carport | 4 | 2.6% | |
| 9 | All other areas | 36 | 23.5% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 69 | 45.1% | |
| 2 | Hot ember or ash | 12 | 7.8% | |
| 3 | Radiated, conducted heat from operating equipment | 10 | 6.5% | |
| 4 | Hot or smoldering object, other | 9 | 5.9% | |
| 5 | Match | 8 | 5.2% | |
| 6 | Heat source: other | 5 | 3.3% | |
| 7 | Cigarette | 5 | 3.3% | |
| 8 | Radiated heat from another fire | 5 | 3.3% | |
| 9 | All other sources | 30 | 19.6% |
Largest single-incident losses in ZIP 37846 across 2021–2025. These 8 fires alone account for 981% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $400,000 | Building fires | 2024 | Major |
| 2 | $110,000 | Building fires | 2021 | Significant |
| 3 | $80,000 | Road freight or transport vehicle fire | 2024 | Significant |
| 4 | $77,900 | Building fires | 2023 | Significant |
| 5 | $75,000 | Building fires | 2023 | Significant |
| 6 | $50,000 | Building fires | 2023 | Significant |
| 7 | $50,000 | Off-road vehicle or heavy equipment fire | 2025 | Significant |
| 8 | $25,000 | Building fires | 2023 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 37846.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Philadelphia | 291 | |
| 2 | Sweetwater | 2 | |
| 3 | Vonore | 2 | |
| 4 | Kingston | 1 | |
| 5 | Madisonville | 1 |
Some ZIPs span multiple counties. The primary above is the largest by population weight; secondary counties are below.
| County | State | Weight | |
|---|---|---|---|
| Monroe County | TN | 1.00 | FIPS 47123 |
| Roane County | TN | 1.00 | FIPS 47145 |
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 — 333 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.