ZIP 37888 recorded 19 fire and hazmat incidents in 2025, 88 across 2021–2025. Primary county: Grainger County, TN. FEMA NRI rates wildfire risk here as Moderate.
88 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 3 | |
| 2022 | 13 | |
| 2023 | 32 | |
| 2024 | 21 | |
| 2025 | 19 |
Mar peaks. Sep dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 37888 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 28 | 31.8% | |
| 2 | Forest, woods or wildland fire | 9 | 10.2% | |
| 3 | Fire, other | 8 | 9.1% | |
| 4 | Brush, or brush and grass mixture fire | 6 | 6.8% | |
| 5 | Electrical wiring/equipment problem, other | 6 | 6.8% |
For the 9 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 37888 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 14 | 51.9% | |
| 2 | Other | 3 | 11.1% | |
| 3 | Vehicle area, other | 2 | 7.4% | |
| 4 | Highway, parking lot, street: on or near | 2 | 7.4% | |
| 5 | Common room, den, family room, living room, lounge | 1 | 3.7% | |
| 6 | Bedroom - < 5 persons; included are jail or prison | 1 | 3.7% | |
| 7 | Cooking area, kitchen | 1 | 3.7% | |
| 8 | Structural area, other | 1 | 3.7% | |
| 9 | All other areas | 2 | 7.4% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 19 | 70.4% | |
| 2 | Heat source: other | 2 | 7.4% | |
| 3 | Heat from powered equipment, other | 2 | 7.4% | |
| 4 | Arcing | 1 | 3.7% | |
| 5 | Heat, spark from friction | 1 | 3.7% | |
| 6 | Hot ember or ash | 1 | 3.7% | |
| 7 | Multiple heat sources including multiple ignitions | 1 | 3.7% |
Largest single-incident losses in ZIP 37888 across 2021–2025. These 4 fires alone account for 144% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $150,000 | Building fires | 2025 | Significant |
| 2 | $60,000 | Fire, other | 2023 | Significant |
| 3 | $50,000 | Building fires | 2025 | Significant |
| 4 | $27,000 | Passenger vehicle fire | 2022 | Significant |
Some ZIPs span multiple counties. The primary above is the largest by population weight; secondary counties are below.
| County | State | Weight | |
|---|---|---|---|
| Union County | TN | 1.00 | FIPS 47173 |
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 — 88 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.