ZIP 53546 recorded 103 fire and hazmat incidents in 2025, 740 across 2021–2025. Primary county: Rock County, WI.
740 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 215 | |
| 2022 | 118 | |
| 2023 | 132 | |
| 2024 | 172 | |
| 2025 | 103 |
Jun peaks. Feb dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 53546 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Unauthorized burning | 110 | 14.9% | |
| 2 | Gas leak (natural gas or LPG) | 89 | 12.0% | |
| 3 | Arcing, shorted electrical equipment | 83 | 11.2% | |
| 4 | Carbon monoxide incident | 65 | 8.8% | |
| 5 | Building fires | 57 | 7.7% |
For the 16 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 53546 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 43 | 21.4% | |
| 2 | Cooking area, kitchen | 23 | 11.4% | |
| 3 | Undetermined | 22 | 10.9% | |
| 4 | Outside area, other | 12 | 6.0% | |
| 5 | Open area - outside; included are farmland, field | 11 | 5.5% | |
| 6 | Vehicle area, other | 10 | 5.0% | |
| 7 | Other | 6 | 3.0% | |
| 8 | Common room, den, family room, living room, lounge | 6 | 3.0% | |
| 9 | All other areas | 68 | 33.8% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 94 | 46.8% | |
| 2 | Heat from powered equipment, other | 28 | 13.9% | |
| 3 | Hot ember or ash | 11 | 5.5% | |
| 4 | Radiated, conducted heat from operating equipment | 10 | 5.0% | |
| 5 | Arcing | 9 | 4.5% | |
| 6 | Spark, ember or flame from operating equipment | 7 | 3.5% | |
| 7 | Cigarette | 7 | 3.5% | |
| 8 | Hot or smoldering object, other | 6 | 3.0% | |
| 9 | All other sources | 29 | 14.4% |
Largest single-incident losses in ZIP 53546 across 2021–2025. These 8 fires alone account for 286% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $500,000 | Building fires | 2024 | Major |
| 2 | $350,000 | Building fires | 2025 | Major |
| 3 | $230,000 | Passenger vehicle fire | 2021 | Significant |
| 4 | $230,000 | Passenger vehicle fire | 2021 | Significant |
| 5 | $230,000 | Passenger vehicle fire | 2021 | Significant |
| 6 | $190,000 | Off-road vehicle or heavy equipment fire | 2024 | Significant |
| 7 | $150,000 | Off-road vehicle or heavy equipment fire | 2022 | Significant |
| 8 | $125,000 | Off-road vehicle or heavy equipment fire | 2023 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 53546.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Janesville | 656 | |
| 2 | Beloit | 1 | |
| 3 | Evansville | 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 — 740 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.