ZIP 53545 recorded 142 fire and hazmat incidents in 2025, 765 across 2021–2025. Primary county: Rock County, WI.
765 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 153 | |
| 2022 | 125 | |
| 2023 | 151 | |
| 2024 | 194 | |
| 2025 | 142 |
Jul peaks. Feb dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 53545 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Unauthorized burning | 141 | 18.4% | |
| 2 | Gas leak (natural gas or LPG) | 87 | 11.4% | |
| 3 | Building fires | 82 | 10.7% | |
| 4 | Arcing, shorted electrical equipment | 74 | 9.7% | |
| 5 | Carbon monoxide incident | 60 | 7.8% |
For the 18 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 53545 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 22 | 13.6% | |
| 2 | Cooking area, kitchen | 19 | 11.7% | |
| 3 | Outside area, other | 15 | 9.3% | |
| 4 | Open area - outside; included are farmland, field | 12 | 7.4% | |
| 5 | Undetermined | 11 | 6.8% | |
| 6 | Vehicle storage area; garage, carport | 10 | 6.2% | |
| 7 | Highway, parking lot, street: on or near | 8 | 4.9% | |
| 8 | Courtyard, patio, porch, terrace | 7 | 4.3% | |
| 9 | All other areas | 58 | 35.8% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 76 | 46.9% | |
| 2 | Heat from powered equipment, other | 21 | 13.0% | |
| 3 | Cigarette | 10 | 6.2% | |
| 4 | Radiated, conducted heat from operating equipment | 9 | 5.6% | |
| 5 | Arcing | 9 | 5.6% | |
| 6 | Hot ember or ash | 8 | 4.9% | |
| 7 | Heat from other open flame or smoking materials | 4 | 2.5% | |
| 8 | Flame/torch used for lighting | 4 | 2.5% | |
| 9 | All other sources | 21 | 13.0% |
Largest single-incident losses in ZIP 53545 across 2021–2025. These 8 fires alone account for 127% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $5,263,500 | Fires in structures other than in a building | 2025 | Catastrophic |
| 2 | $1,300,000 | Building fires | 2024 | Major |
| 3 | $350,000 | Building fires | 2025 | Major |
| 4 | $250,034 | Building fires | 2024 | Major |
| 5 | $250,000 | Building fires | 2024 | Major |
| 6 | $230,000 | Passenger vehicle fire | 2021 | Significant |
| 7 | $200,000 | Building fires | 2025 | Significant |
| 8 | $163,944 | Building fires | 2024 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 53545.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Janesville | 737 |
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 — 765 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.