ZIP 37931 recorded 111 fire and hazmat incidents in 2025, 447 across 2021–2025. Primary county: Knox County, TN. FEMA NRI rates wildfire risk here as High.
447 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 40 | |
| 2022 | 91 | |
| 2023 | 106 | |
| 2024 | 99 | |
| 2025 | 111 |
Mar peaks. Jan dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 37931 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Gas leak (natural gas or LPG) | 63 | 14.1% | |
| 2 | Authorized controlled burning | 60 | 13.4% | |
| 3 | Unauthorized burning | 35 | 7.8% | |
| 4 | Building fires | 33 | 7.4% | |
| 5 | Passenger vehicle fire | 33 | 7.4% |
For the 7 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 37931 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 42 | 27.8% | |
| 2 | Engine area, running gear, wheel area | 24 | 15.9% | |
| 3 | Open area - outside; included are farmland, field | 16 | 10.6% | |
| 4 | Outside area, other | 9 | 6.0% | |
| 5 | Wildland, woods | 8 | 5.3% | |
| 6 | Highway, parking lot, street: on or near | 7 | 4.6% | |
| 7 | Other | 5 | 3.3% | |
| 8 | Cooking area, kitchen | 5 | 3.3% | |
| 9 | All other areas | 35 | 23.2% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 95 | 62.9% | |
| 2 | Radiated, conducted heat from operating equipment | 9 | 6.0% | |
| 3 | Hot or smoldering object, other | 8 | 5.3% | |
| 4 | Heat from powered equipment, other | 6 | 4.0% | |
| 5 | Arcing | 5 | 3.3% | |
| 6 | Spark, ember or flame from operating equipment | 3 | 2.0% | |
| 7 | Cigarette lighter | 3 | 2.0% | |
| 8 | Flame/torch used for lighting | 3 | 2.0% | |
| 9 | All other sources | 19 | 12.6% |
Largest single-incident losses in ZIP 37931 across 2021–2025. These 8 fires alone account for 221% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $700,000 | Building fires | 2025 | Major |
| 2 | $544,300 | Building fires | 2022 | Major |
| 3 | $265,000 | Building fires | 2025 | Major |
| 4 | $256,300 | Building fires | 2024 | Major |
| 5 | $228,300 | Building fires | 2024 | Significant |
| 6 | $210,000 | Building fires | 2023 | Significant |
| 7 | $205,000 | Building fires | 2024 | Significant |
| 8 | $190,300 | Building fires | 2022 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 37931.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Knoxville | 446 |
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 — 447 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.