ZIP 54421 recorded 9 fire and hazmat incidents in 2025, 45 across 2021–2025. Primary county: Marathon County, WI. FEMA NRI rates wildfire risk here as Moderate.
45 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 12 | |
| 2022 | 6 | |
| 2023 | 7 | |
| 2024 | 11 | |
| 2025 | 9 |
Apr peaks. Sep dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 54421 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 19 | 42.2% | |
| 2 | Fire, other | 5 | 11.1% | |
| 3 | Brush, or brush and grass mixture fire | 5 | 11.1% | |
| 4 | Off-road vehicle or heavy equipment fire | 3 | 6.7% | |
| 5 | Grass fire | 3 | 6.7% |
For the 5 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 54421 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 10 | 32.3% | |
| 2 | Open area - outside; included are farmland, field | 7 | 22.6% | |
| 3 | Cooking area, kitchen | 3 | 9.7% | |
| 4 | Vehicle storage area; garage, carport | 3 | 9.7% | |
| 5 | Outside area, other | 2 | 6.5% | |
| 6 | Entrance way, lobby | 1 | 3.2% | |
| 7 | Laundry area, wash house (laundry) | 1 | 3.2% | |
| 8 | Storage room, area, tank, or bin | 1 | 3.2% | |
| 9 | All other areas | 3 | 9.7% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 9 | 29.0% | |
| 2 | Radiated, conducted heat from operating equipment | 4 | 12.9% | |
| 3 | Hot ember or ash | 4 | 12.9% | |
| 4 | Heat from powered equipment, other | 3 | 9.7% | |
| 5 | Spark, ember or flame from operating equipment | 3 | 9.7% | |
| 6 | Arcing | 3 | 9.7% | |
| 7 | Heat source: other | 1 | 3.2% | |
| 8 | Hot or smoldering object, other | 1 | 3.2% | |
| 9 | All other sources | 3 | 9.7% |
Largest single-incident losses in ZIP 54421 across 2021–2025. These 8 fires alone account for 217% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $150,000 | Building fires | 2025 | Significant |
| 2 | $120,000 | Building fires | 2024 | Significant |
| 3 | $60,000 | Building fires | 2021 | Significant |
| 4 | $50,000 | Off-road vehicle or heavy equipment fire | 2025 | Significant |
| 5 | $20,000 | Building fires | 2021 | Significant |
| 6 | $20,000 | Passenger vehicle fire | 2023 | Significant |
| 7 | $10,000 | Building fires | 2024 | Significant |
| 8 | $5,000 | Off-road vehicle or heavy equipment fire | 2022 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 54421.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Colby | 45 |
Some ZIPs span multiple counties. The primary above is the largest by population weight; secondary counties are below.
| County | State | Weight | |
|---|---|---|---|
| Clark County | WI | 0.50 | FIPS 55019 |
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 — 45 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.