ZIP 53521 recorded 32 fire and hazmat incidents in 2025, 179 across 2021–2025. Primary county: Green County, WI.
179 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 24 | |
| 2022 | 43 | |
| 2023 | 38 | |
| 2024 | 42 | |
| 2025 | 32 |
Mar peaks. Jul dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 53521 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 50 | 27.9% | |
| 2 | Brush, or brush and grass mixture fire | 24 | 13.4% | |
| 3 | Gas leak (natural gas or LPG) | 14 | 7.8% | |
| 4 | Carbon monoxide incident | 9 | 5.0% | |
| 5 | Electrical wiring/equipment problem, other | 9 | 5.0% |
For the 0 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 53521 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Open area - outside; included are farmland, field | 7 | 20.0% | |
| 2 | Undetermined | 6 | 17.1% | |
| 3 | Engine area, running gear, wheel area | 4 | 11.4% | |
| 4 | Outside area, other | 3 | 8.6% | |
| 5 | Heating room or area, water heater area | 2 | 5.7% | |
| 6 | Operator/passenger area of transportation equip. | 2 | 5.7% | |
| 7 | Exterior, exposed surface | 2 | 5.7% | |
| 8 | Cooking area, kitchen | 1 | 2.9% | |
| 9 | All other areas | 8 | 22.9% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 18 | 51.4% | |
| 2 | Arcing | 4 | 11.4% | |
| 3 | Heat source: other | 3 | 8.6% | |
| 4 | Radiated, conducted heat from operating equipment | 2 | 5.7% | |
| 5 | Heat from direct flame, convection currents | 2 | 5.7% | |
| 6 | Hot or smoldering object, other | 1 | 2.9% | |
| 7 | Heat, spark from friction | 1 | 2.9% | |
| 8 | Hot ember or ash | 1 | 2.9% | |
| 9 | All other sources | 3 | 8.6% |
Largest single-incident losses in ZIP 53521 across 2021–2025. These 8 fires alone account for 9891% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $800,000 | Building fires | 2022 | Major |
| 2 | $150,000 | Building fires | 2022 | Significant |
| 3 | $75,000 | Building fires | 2024 | Significant |
| 4 | $50,000 | Building fires | 2023 | Significant |
| 5 | $5,000 | Camper or recreational vehicle (RV) fire | 2025 | Significant |
| 6 | $5,000 | Passenger vehicle fire | 2025 | Significant |
| 7 | $2,000 | Building fires | 2022 | Significant |
| 8 | $1,000 | Outside storage fire | 2023 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 53521.
Some ZIPs span multiple counties. The primary above is the largest by population weight; secondary counties are below.
| County | State | Weight | |
|---|---|---|---|
| Dane County | WI | 0.50 | FIPS 55025 |
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 — 179 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.