ZIP 37874 recorded 144 fire and hazmat incidents in 2025, 968 across 2021–2025. Primary county: Loudon County, TN. FEMA NRI rates wildfire risk here as Moderate.
968 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 161 | |
| 2022 | 212 | |
| 2023 | 248 | |
| 2024 | 203 | |
| 2025 | 144 |
Mar peaks. Jun dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 37874 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 222 | 22.9% | |
| 2 | Brush, or brush and grass mixture fire | 94 | 9.7% | |
| 3 | Passenger vehicle fire | 67 | 6.9% | |
| 4 | Authorized controlled burning | 56 | 5.8% | |
| 5 | Trash or rubbish fire, contained | 54 | 5.6% |
For the 34 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 37874 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Outside area, other | 70 | 18.1% | |
| 2 | Undetermined | 63 | 16.3% | |
| 3 | Open area - outside; included are farmland, field | 42 | 10.9% | |
| 4 | Engine area, running gear, wheel area | 35 | 9.0% | |
| 5 | Wildland, woods | 23 | 5.9% | |
| 6 | Cooking area, kitchen | 16 | 4.1% | |
| 7 | Other | 13 | 3.4% | |
| 8 | Vehicle area, other | 12 | 3.1% | |
| 9 | All other areas | 113 | 29.2% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 178 | 46.0% | |
| 2 | Arcing | 23 | 5.9% | |
| 3 | Heat from powered equipment, other | 21 | 5.4% | |
| 4 | Cigarette lighter | 21 | 5.4% | |
| 5 | Spark, ember or flame from operating equipment | 17 | 4.4% | |
| 6 | Radiated, conducted heat from operating equipment | 17 | 4.4% | |
| 7 | Heat source: other | 16 | 4.1% | |
| 8 | Hot ember or ash | 14 | 3.6% | |
| 9 | All other sources | 80 | 20.7% |
Largest single-incident losses in ZIP 37874 across 2021–2025. These 8 fires alone account for 836% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $1,713,000 | Building fires | 2024 | Major |
| 2 | $1,000,000 | Building fires | 2024 | Major |
| 3 | $300,000 | Building fires | 2023 | Major |
| 4 | $270,000 | Outside equipment fire | 2022 | Major |
| 5 | $250,000 | Building fires | 2024 | Major |
| 6 | $250,000 | Building fires | 2025 | Major |
| 7 | $160,000 | Building fires | 2022 | Significant |
| 8 | $150,000 | Building fires | 2021 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 37874.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Sweetwater | 932 | |
| 2 | Madisonville | 13 | |
| 3 | Philadelphia | 5 | |
| 4 | Niota | 4 | |
| 5 | Englewood | 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 |
| McMinn County | TN | 0.50 | FIPS 47107 |
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 — 968 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.