ZIP 37311 recorded 67 fire and hazmat incidents in 2025, 1,326 across 2021–2025. Primary county: Bradley County, TN. FEMA NRI rates wildfire risk here as Moderate.
1,326 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 335 | |
| 2022 | 290 | |
| 2023 | 337 | |
| 2024 | 297 | |
| 2025 | 67 |
Jul peaks. Aug dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 37311 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Outside rubbish, trash or waste fire | 148 | 11.2% | |
| 2 | Building fires | 147 | 11.1% | |
| 3 | Unauthorized burning | 115 | 8.7% | |
| 4 | Authorized controlled burning | 92 | 6.9% | |
| 5 | Passenger vehicle fire | 74 | 5.6% |
For the 9 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 37311 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 119 | 23.9% | |
| 2 | Engine area, running gear, wheel area | 59 | 11.8% | |
| 3 | Outside area, other | 53 | 10.6% | |
| 4 | Open area - outside; included are farmland, field | 36 | 7.2% | |
| 5 | Cooking area, kitchen | 32 | 6.4% | |
| 6 | Other | 17 | 3.4% | |
| 7 | Bedroom - < 5 persons; included are jail or prison | 16 | 3.2% | |
| 8 | Exterior balcony, unenclosed porch | 14 | 2.8% | |
| 9 | All other areas | 152 | 30.5% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 254 | 51.0% | |
| 2 | Radiated, conducted heat from operating equipment | 33 | 6.6% | |
| 3 | Heat from powered equipment, other | 32 | 6.4% | |
| 4 | Arcing | 25 | 5.0% | |
| 5 | Hot or smoldering object, other | 20 | 4.0% | |
| 6 | Hot ember or ash | 19 | 3.8% | |
| 7 | Cigarette lighter | 18 | 3.6% | |
| 8 | Spark, ember or flame from operating equipment | 14 | 2.8% | |
| 9 | All other sources | 83 | 16.7% |
Largest single-incident losses in ZIP 37311 across 2021–2025. These 8 fires alone account for 437% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $750,000 | Building fires | 2021 | Major |
| 2 | $400,000 | Building fires | 2022 | Major |
| 3 | $325,000 | Building fires | 2024 | Major |
| 4 | $300,000 | Building fires | 2023 | Major |
| 5 | $275,000 | Building fires | 2024 | Major |
| 6 | $250,700 | Building fires | 2022 | Major |
| 7 | $220,000 | Building fires | 2022 | Significant |
| 8 | $205,100 | Building fires | 2023 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 37311.
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 — 1,326 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.