ZIP 37861 recorded 32 fire and hazmat incidents in 2025, 184 across 2021–2025. Primary county: Grainger County, TN. FEMA NRI rates wildfire risk here as Moderate.
184 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 52 | |
| 2022 | 43 | |
| 2023 | 30 | |
| 2024 | 27 | |
| 2025 | 32 |
Feb peaks. May dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 37861 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 66 | 35.9% | |
| 2 | Brush, or brush and grass mixture fire | 28 | 15.2% | |
| 3 | Prescribed fire | 10 | 5.4% | |
| 4 | Fire, other | 9 | 4.9% | |
| 5 | Power line down | 9 | 4.9% |
For the 19 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 37861 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 32 | 80.0% | |
| 2 | Ceiling & floor assembly, crawl space b/t stories | 2 | 5.0% | |
| 3 | Other | 1 | 2.5% | |
| 4 | Laundry area, wash house (laundry) | 1 | 2.5% | |
| 5 | Machinery room or area; elevator machinery room | 1 | 2.5% | |
| 6 | Attic: vacant, crawl space above top story, cupola | 1 | 2.5% | |
| 7 | Vehicle area, other | 1 | 2.5% | |
| 8 | Exterior, exposed surface | 1 | 2.5% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 35 | 87.5% | |
| 2 | Heat from powered equipment, other | 1 | 2.5% | |
| 3 | Radiated, conducted heat from operating equipment | 1 | 2.5% | |
| 4 | Arcing | 1 | 2.5% | |
| 5 | Hot or smoldering object, other | 1 | 2.5% | |
| 6 | Conducted heat from another fire | 1 | 2.5% |
Largest single-incident losses in ZIP 37861 across 2021–2025. These 8 fires alone account for 6072% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $1,000,000 | Special outside fire, other | 2022 | Major |
| 2 | $274,800 | Building fires | 2021 | Major |
| 3 | $260,000 | Fires in structures other than in a building | 2023 | Major |
| 4 | $100,000 | Building fires | 2022 | Significant |
| 5 | $90,000 | Fire, other | 2023 | Significant |
| 6 | $80,000 | Fire, other | 2024 | Significant |
| 7 | $30,000 | Building fires | 2025 | Significant |
| 8 | $5,000 | Outside equipment fire | 2021 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 37861.
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 — 184 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.