ZIP 37615 recorded 193 fire and hazmat incidents in 2025, 713 across 2021–2025. Primary county: Washington County, TN. FEMA NRI rates wildfire risk here as Moderate.
713 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 124 | |
| 2022 | 150 | |
| 2023 | 112 | |
| 2024 | 134 | |
| 2025 | 193 |
Mar peaks. Aug dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 37615 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Authorized controlled burning | 129 | 18.1% | |
| 2 | Building fires | 120 | 16.8% | |
| 3 | Brush, or brush and grass mixture fire | 52 | 7.3% | |
| 4 | Outside rubbish, trash or waste fire | 52 | 7.3% | |
| 5 | Gas leak (natural gas or LPG) | 42 | 5.9% |
For the 18 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 37615 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Outside area, other | 79 | 30.3% | |
| 2 | Undetermined | 31 | 11.9% | |
| 3 | Cooking area, kitchen | 25 | 9.6% | |
| 4 | Engine area, running gear, wheel area | 21 | 8.0% | |
| 5 | Open area - outside; included are farmland, field | 19 | 7.3% | |
| 6 | Vehicle area, other | 14 | 5.4% | |
| 7 | Laundry area, wash house (laundry) | 5 | 1.9% | |
| 8 | Wildland, woods | 5 | 1.9% | |
| 9 | All other areas | 62 | 23.8% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 147 | 56.3% | |
| 2 | Hot ember or ash | 22 | 8.4% | |
| 3 | Arcing | 21 | 8.0% | |
| 4 | Heat from powered equipment, other | 13 | 5.0% | |
| 5 | Radiated, conducted heat from operating equipment | 12 | 4.6% | |
| 6 | Heat source: other | 11 | 4.2% | |
| 7 | Spark, ember or flame from operating equipment | 4 | 1.5% | |
| 8 | Heat, spark from friction | 4 | 1.5% | |
| 9 | All other sources | 27 | 10.3% |
Largest single-incident losses in ZIP 37615 across 2021–2025. These 8 fires alone account for 190% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $265,400 | Building fires | 2021 | Major |
| 2 | $250,000 | Building fires | 2025 | Major |
| 3 | $200,000 | Building fires | 2024 | Significant |
| 4 | $100,000 | Building fires | 2021 | Significant |
| 5 | $100,000 | Building fires | 2022 | Significant |
| 6 | $100,000 | Building fires | 2024 | Significant |
| 7 | $100,000 | Building fires | 2025 | Significant |
| 8 | $52,100 | Building fires | 2024 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 37615.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Gray | 557 | |
| 2 | Johnson City | 131 | |
| 3 | Fall Branch | 1 | |
| 4 | Jonesborough | 1 | |
| 5 | Kingsport | 1 |
Some ZIPs span multiple counties. The primary above is the largest by population weight; secondary counties are below.
| County | State | Weight | |
|---|---|---|---|
| Carter County | TN | 0.50 | FIPS 47019 |
| Sullivan County | TN | 0.50 | FIPS 47163 |
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 — 713 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.