ZIP 37343 recorded 257 fire and hazmat incidents in 2025, 1,404 across 2021–2025. Primary county: Hamilton County, TN. FEMA NRI rates wildfire risk here as High.
1,404 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 296 | |
| 2022 | 289 | |
| 2023 | 292 | |
| 2024 | 270 | |
| 2025 | 257 |
Mar peaks. Dec dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 37343 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Power line down | 415 | 29.6% | |
| 2 | Building fires | 180 | 12.8% | |
| 3 | Gas leak (natural gas or LPG) | 133 | 9.5% | |
| 4 | Outside rubbish, trash or waste fire | 107 | 7.6% | |
| 5 | Brush, or brush and grass mixture fire | 68 | 4.8% |
For the 32 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 37343 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 62 | 14.5% | |
| 2 | Outside area, other | 60 | 14.0% | |
| 3 | Engine area, running gear, wheel area | 52 | 12.1% | |
| 4 | Cooking area, kitchen | 36 | 8.4% | |
| 5 | Wildland, woods | 26 | 6.1% | |
| 6 | Open area - outside; included are farmland, field | 23 | 5.4% | |
| 7 | Exterior balcony, unenclosed porch | 14 | 3.3% | |
| 8 | Highway, parking lot, street: on or near | 14 | 3.3% | |
| 9 | All other areas | 142 | 33.1% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 219 | 51.0% | |
| 2 | Heat from powered equipment, other | 54 | 12.6% | |
| 3 | Hot or smoldering object, other | 24 | 5.6% | |
| 4 | Hot ember or ash | 19 | 4.4% | |
| 5 | Arcing | 17 | 4.0% | |
| 6 | Spark, ember or flame from operating equipment | 12 | 2.8% | |
| 7 | Cigarette lighter | 11 | 2.6% | |
| 8 | Heat source: other | 10 | 2.3% | |
| 9 | All other sources | 63 | 14.7% |
Largest single-incident losses in ZIP 37343 across 2021–2025. These 8 fires alone account for 350% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $2,000,000 | Building fires | 2024 | Major |
| 2 | $750,000 | Building fires | 2025 | Major |
| 3 | $500,000 | Building fires | 2023 | Major |
| 4 | $469,000 | Building fires | 2024 | Major |
| 5 | $300,000 | Building fires | 2024 | Major |
| 6 | $285,000 | Building fires | 2021 | Major |
| 7 | $250,000 | Building fires | 2021 | Major |
| 8 | $220,000 | Building fires | 2023 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 37343.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Chattanooga | 536 | |
| 2 | Middle Valley | 11 | |
| 3 | Red Bank | 8 | |
| 4 | Lakesite | 6 | |
| 5 | Falling Water | 1 |
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 — 1,404 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.