ZIP 53512 is served primarily by Rock County, WI — including Janesville. ZIP-level data is sparse — showing the Rock County aggregate.
Mar peaks. Feb dips. ZIP-level seasonality is sparse — this is the county aggregate.
Top 5 NFIRS incident types — county-level breakdown.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 223 | 18.7% | |
| 2 | Unauthorized burning | 170 | 14.3% | |
| 3 | Gas leak (natural gas or LPG) | 118 | 9.9% | |
| 4 | Brush, or brush and grass mixture fire | 97 | 8.2% | |
| 5 | Arcing, shorted electrical equipment | 76 | 6.4% |
8 cities sit in Rock County. Click for the per-city NFIRS profile.
| # | City | Population | 2025 incidents | Building fires | Grade |
|---|---|---|---|---|---|
| 1 | Janesville | 65,669 | 302 | 45 | B+ |
| 2 | Beloit | 36,642 | 538 | 103 | C+ |
| 3 | Edgerton | 5,878 | 55 | 7 | B+ |
| 4 | Evansville | 5,720 | 37 | 7 | A- |
| 5 | Milton | 5,692 | 84 | 9 | B- |
| 6 | Clinton | 1,938 | 51 | 16 | C+ |
| 7 | Orfordville | 1,523 | 10 | 5 | A- |
| 8 | Footville | 939 | 10 | 1 | A |
The figures above are historical. For today's air quality, fire-weather warnings, and active fires, go to the official sources.
This ZIP doesn't have enough NFIRS coverage on its own (under 10 reported incidents across 2021–2025) to publish ZIP-level statistics, so we're showing the Rock County aggregate above. NFIRS reporting is voluntary and many rural ZIPs roll up to broader county totals. The ZIP-to-county mapping uses SimpleMaps' uscities.zips dataset.