ZIP 37686 recorded 60 fire and hazmat incidents in 2025, 347 across 2021–2025. Primary county: Sullivan County, TN.
347 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 55 | |
| 2022 | 83 | |
| 2023 | 70 | |
| 2024 | 79 | |
| 2025 | 60 |
Nov peaks. Jan dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 37686 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Authorized controlled burning | 75 | 21.6% | |
| 2 | Building fires | 56 | 16.1% | |
| 3 | Vehicle accident, general cleanup | 31 | 8.9% | |
| 4 | Passenger vehicle fire | 24 | 6.9% | |
| 5 | Brush, or brush and grass mixture fire | 24 | 6.9% |
For the 4 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 37686 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Open area - outside; included are farmland, field | 22 | 18.3% | |
| 2 | Engine area, running gear, wheel area | 14 | 11.7% | |
| 3 | Undetermined | 13 | 10.8% | |
| 4 | Outside area, other | 12 | 10.0% | |
| 5 | Cooking area, kitchen | 7 | 5.8% | |
| 6 | Wall surface: exterior | 6 | 5.0% | |
| 7 | Bedroom - < 5 persons; included are jail or prison | 4 | 3.3% | |
| 8 | Operator/passenger area of transportation equip. | 4 | 3.3% | |
| 9 | All other areas | 38 | 31.7% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 50 | 41.7% | |
| 2 | Radiated, conducted heat from operating equipment | 14 | 11.7% | |
| 3 | Radiated heat from another fire | 8 | 6.7% | |
| 4 | Arcing | 6 | 5.0% | |
| 5 | Hot ember or ash | 4 | 3.3% | |
| 6 | Match | 4 | 3.3% | |
| 7 | Cigarette lighter | 4 | 3.3% | |
| 8 | Heat from direct flame, convection currents | 4 | 3.3% | |
| 9 | All other sources | 26 | 21.7% |
Largest single-incident losses in ZIP 37686 across 2021–2025. These 8 fires alone account for 541% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $283,600 | Building fires | 2021 | Major |
| 2 | $200,000 | Building fires | 2024 | Significant |
| 3 | $150,000 | Passenger vehicle fire | 2023 | Significant |
| 4 | $135,400 | Building fires | 2022 | Significant |
| 5 | $128,200 | Building fires | 2025 | Significant |
| 6 | $80,000 | Building fires | 2023 | Significant |
| 7 | $75,000 | Building fires | 2021 | Significant |
| 8 | $60,000 | Building fires | 2023 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 37686.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Johnson City | 8 | |
| 2 | Bluff City | 3 | |
| 3 | Blountville | 2 |
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 — 347 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.