ZIP 37404 recorded 158 fire and hazmat incidents in 2025, 842 across 2021–2025. Primary county: Hamilton County, TN. FEMA NRI rates wildfire risk here as High.
842 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 154 | |
| 2022 | 159 | |
| 2023 | 178 | |
| 2024 | 193 | |
| 2025 | 158 |
Jul peaks. Jan dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 37404 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Power line down | 166 | 19.7% | |
| 2 | Outside rubbish, trash or waste fire | 89 | 10.6% | |
| 3 | Passenger vehicle fire | 76 | 9.0% | |
| 4 | Vehicle accident, general cleanup | 67 | 8.0% | |
| 5 | Gas leak (natural gas or LPG) | 64 | 7.6% |
For the 11 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 37404 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Outside area, other | 64 | 21.3% | |
| 2 | Undetermined | 62 | 20.6% | |
| 3 | Engine area, running gear, wheel area | 42 | 14.0% | |
| 4 | Cooking area, kitchen | 24 | 8.0% | |
| 5 | Open area - outside; included are farmland, field | 16 | 5.3% | |
| 6 | Operator/passenger area of transportation equip. | 8 | 2.7% | |
| 7 | Highway, parking lot, street: on or near | 8 | 2.7% | |
| 8 | Bedroom - < 5 persons; included are jail or prison | 7 | 2.3% | |
| 9 | All other areas | 70 | 23.3% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 151 | 50.2% | |
| 2 | Hot ember or ash | 28 | 9.3% | |
| 3 | Heat from powered equipment, other | 22 | 7.3% | |
| 4 | Cigarette lighter | 17 | 5.6% | |
| 5 | Radiated, conducted heat from operating equipment | 13 | 4.3% | |
| 6 | Hot or smoldering object, other | 12 | 4.0% | |
| 7 | Arcing | 10 | 3.3% | |
| 8 | Spark, ember or flame from operating equipment | 8 | 2.7% | |
| 9 | All other sources | 40 | 13.3% |
Largest single-incident losses in ZIP 37404 across 2021–2025. These 8 fires alone account for 197% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $1,000,000 | Building fires | 2022 | Major |
| 2 | $748,000 | Outside rubbish, trash or waste fire | 2025 | Major |
| 3 | $254,300 | Building fires | 2022 | Major |
| 4 | $200,000 | Building fires | 2025 | Significant |
| 5 | $150,000 | Building fires | 2023 | Significant |
| 6 | $100,000 | Building fires | 2022 | Significant |
| 7 | $100,000 | Building fires | 2023 | Significant |
| 8 | $100,000 | Building fires | 2024 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 37404.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Chattanooga | 832 | |
| 2 | East Ridge | 5 | |
| 3 | Athens | 2 | |
| 4 | Ridgeside | 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 — 842 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.