ZIP 54840 recorded 45 fire and hazmat incidents in 2025, 225 across 2021–2025. Primary county: Burnett County, WI. FEMA NRI rates wildfire risk here as High.
225 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 42 | |
| 2022 | 54 | |
| 2023 | 50 | |
| 2024 | 34 | |
| 2025 | 45 |
Mar peaks. Sep dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 54840 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 65 | 28.9% | |
| 2 | Gas leak (natural gas or LPG) | 18 | 8.0% | |
| 3 | Fire, other | 17 | 7.6% | |
| 4 | Authorized controlled burning | 17 | 7.6% | |
| 5 | Forest, woods or wildland fire | 14 | 6.2% |
For the 15 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 54840 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 16 | 20.5% | |
| 2 | Undetermined | 13 | 16.7% | |
| 3 | Wall surface: exterior | 5 | 6.4% | |
| 4 | Other | 4 | 5.1% | |
| 5 | Cooking area, kitchen | 4 | 5.1% | |
| 6 | Vehicle storage area; garage, carport | 4 | 5.1% | |
| 7 | Common room, den, family room, living room, lounge | 3 | 3.8% | |
| 8 | Entrance way, lobby | 2 | 2.6% | |
| 9 | All other areas | 27 | 34.6% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 33 | 42.3% | |
| 2 | Arcing | 16 | 20.5% | |
| 3 | Hot or smoldering object, other | 7 | 9.0% | |
| 4 | Heat from powered equipment, other | 6 | 7.7% | |
| 5 | Hot ember or ash | 5 | 6.4% | |
| 6 | Heat source: other | 4 | 5.1% | |
| 7 | Spark, ember or flame from operating equipment | 2 | 2.6% | |
| 8 | Heat from direct flame, convection currents | 2 | 2.6% | |
| 9 | All other sources | 3 | 3.8% |
Largest single-incident losses in ZIP 54840 across 2021–2025. These 8 fires alone account for 252% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $300,000 | Building fires | 2023 | Major |
| 2 | $250,000 | Building fires | 2025 | Major |
| 3 | $210,000 | Building fires | 2025 | Significant |
| 4 | $150,000 | Building fires | 2021 | Significant |
| 5 | $150,000 | Building fires | 2022 | Significant |
| 6 | $150,000 | 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 54840.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Grantsburg | 221 |
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 — 225 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.