ZIP 53548 recorded 91 fire and hazmat incidents in 2025, 456 across 2021–2025. Primary county: Rock County, WI.
456 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 88 | |
| 2022 | 61 | |
| 2023 | 89 | |
| 2024 | 127 | |
| 2025 | 91 |
May peaks. Jan dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 53548 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Unauthorized burning | 95 | 20.8% | |
| 2 | Building fires | 61 | 13.4% | |
| 3 | Gas leak (natural gas or LPG) | 57 | 12.5% | |
| 4 | Carbon monoxide incident | 33 | 7.2% | |
| 5 | Arcing, shorted electrical equipment | 33 | 7.2% |
For the 15 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 53548 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 18 | 15.4% | |
| 2 | Cooking area, kitchen | 15 | 12.8% | |
| 3 | Open area - outside; included are farmland, field | 11 | 9.4% | |
| 4 | Outside area, other | 7 | 6.0% | |
| 5 | Vehicle storage area; garage, carport | 6 | 5.1% | |
| 6 | Undetermined | 6 | 5.1% | |
| 7 | Exterior, exposed surface | 5 | 4.3% | |
| 8 | Other | 4 | 3.4% | |
| 9 | All other areas | 45 | 38.5% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 55 | 47.0% | |
| 2 | Heat source: other | 8 | 6.8% | |
| 3 | Radiated, conducted heat from operating equipment | 8 | 6.8% | |
| 4 | Hot ember or ash | 7 | 6.0% | |
| 5 | Cigarette | 6 | 5.1% | |
| 6 | Spark, ember or flame from operating equipment | 5 | 4.3% | |
| 7 | Arcing | 5 | 4.3% | |
| 8 | Heat from powered equipment, other | 3 | 2.6% | |
| 9 | All other sources | 20 | 17.1% |
Largest single-incident losses in ZIP 53548 across 2021–2025. These 8 fires alone account for 140% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $175,000 | Building fires | 2025 | Significant |
| 2 | $127,124 | Building fires | 2024 | Significant |
| 3 | $116,100 | Building fires | 2024 | Significant |
| 4 | $100,000 | Building fires | 2024 | Significant |
| 5 | $100,000 | Building fires | 2025 | Significant |
| 6 | $80,000 | Building fires | 2023 | Significant |
| 7 | $80,000 | Building fires | 2024 | Significant |
| 8 | $75,000 | Building fires | 2023 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 53548.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Janesville | 397 |
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 — 456 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.