ZIP 37803 recorded 148 fire and hazmat incidents in 2025, 713 across 2021–2025. Primary county: Blount County, TN. FEMA NRI rates wildfire risk here as High.
713 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 109 | |
| 2022 | 146 | |
| 2023 | 156 | |
| 2024 | 154 | |
| 2025 | 148 |
Mar peaks. Sep dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 37803 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Gas leak (natural gas or LPG) | 135 | 18.9% | |
| 2 | Authorized controlled burning | 123 | 17.3% | |
| 3 | Building fires | 101 | 14.2% | |
| 4 | Brush, or brush and grass mixture fire | 50 | 7.0% | |
| 5 | Carbon monoxide incident | 36 | 5.0% |
For the 22 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 37803 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 42 | 16.1% | |
| 2 | Outside area, other | 29 | 11.1% | |
| 3 | Open area - outside; included are farmland, field | 29 | 11.1% | |
| 4 | Wildland, woods | 20 | 7.7% | |
| 5 | Cooking area, kitchen | 18 | 6.9% | |
| 6 | Engine area, running gear, wheel area | 16 | 6.1% | |
| 7 | Highway, parking lot, street: on or near | 11 | 4.2% | |
| 8 | Vehicle area, other | 8 | 3.1% | |
| 9 | All other areas | 88 | 33.7% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 116 | 44.4% | |
| 2 | Hot ember or ash | 32 | 12.3% | |
| 3 | Radiated, conducted heat from operating equipment | 15 | 5.7% | |
| 4 | Arcing | 13 | 5.0% | |
| 5 | Spark, ember or flame from operating equipment | 10 | 3.8% | |
| 6 | Hot or smoldering object, other | 9 | 3.4% | |
| 7 | Heat from powered equipment, other | 8 | 3.1% | |
| 8 | Flying brand, ember, spark | 7 | 2.7% | |
| 9 | All other sources | 51 | 19.5% |
Largest single-incident losses in ZIP 37803 across 2021–2025. These 8 fires alone account for 214% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $745,100 | Building fires | 2025 | Major |
| 2 | $399,900 | Building fires | 2021 | Major |
| 3 | $300,000 | Building fires | 2022 | Major |
| 4 | $300,000 | Building fires | 2022 | Major |
| 5 | $250,000 | Building fires | 2023 | Major |
| 6 | $230,000 | Building fires | 2023 | Significant |
| 7 | $225,000 | Building fires | 2022 | Significant |
| 8 | $225,000 | Building fires | 2023 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 37803.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Maryville | 706 |
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.