Data disclaimer: Based on the NFIRS Public Data Release (2021–2025). NFIRS is voluntarily reported and may not include all departments or incidents. Some departments have missing years or incomplete records. Totals shown reflect data as submitted and may not represent complete activity.
Incident Composition (2021–2025)
5-Year Trends
Total Incidents
By Incident Type
Key Metrics
44,694
Avg Incidents / Year
74.3%
EMS Share
2.2%
Fire Share
7.2%
False Alarm Rate
+22.5%
5-Year Trend
34
Departments
Departments
| Department ▲ | 5-Year Incidents ▼ | Fire % ▲ | EMS % ▲ | False Alarm % ▲ | Trend ▲ |
|---|---|---|---|---|---|
| Waukesha Fire Dept | 39,384 | 1.5% | 84.3% | 6.6% | +297.1% |
| Western Lake Fire District | 31,931 | 1.6% | 83.7% | 5.3% | +0.8% |
| Menomonee Falls Fire Dept | 26,219 | 1.4% | 69.5% | 6.2% | +14% |
| Brookfield Fire Dept | 24,748 | 1.8% | 66.1% | 11.1% | +12.1% |
| New Berlin Fire Dept | 24,665 | 2% | 72% | 8.5% | +1.6% |
| Pewaukee Fire Dept | 15,052 | 2.4% | 71.9% | 7.5% | +29.8% |
| Lake Country Fire and Rescue | 14,829 | 2.7% | 69.8% | 6.9% | -8% |
| Mukwonago Fire Dept | 10,566 | 1.8% | 81.6% | 4% | -17.6% |
| Brookfield Twp Fire Dept | 6,675 | 2.2% | 68.6% | 8.3% | +19.2% |
| Sussex Fire Dept | 5,584 | 2.9% | 73.4% | 6.7% | +62.4% |
| Hartland Vol Fire Dept | 5,437 | 2.9% | 75% | 5.9% | +20.4% |
| Ia Lisbon Fire Dept | 4,695 | 3.1% | 71.3% | 3.5% | -37.8% |
| Village of Waukesha Vol Fire Dept | 2,704 | 6.4% | 67.9% | 4.4% | +12.7% |
| Butler Vol Fire Dept Inc | 2,564 | 3.2% | 63.5% | 12.5% | -12.9% |
| Village of Merton Fire Dept | 2,273 | 7.6% | 62.4% | 6% | +70.4% |
| Vernon Fire Dept | 1,970 | 8.2% | 72.9% | 2.6% | +10% |
| Kettle Moraine Fire District | 1,526 | 9% | 68.2% | 4.3% | +0.8% |
| Tess Corners Vol Fire Dept | 1,507 | 10.7% | 16.2% | 27.5% | -23.1% |
| Elm Grove Fire Dept | 743 | 4.8% | 9.2% | 32.8% | +0.6% |
| Big Bend Vol Fire Dept | 251 | 18.3% | 17.9% | 4.4% | -95% |
| Ia North Prairie Vol Fire Dept | 148 | 14.2% | 48% | 7.4% | — |
| Ia Muskego Vol Fire Co | 0 | 0% | 0% | 0% | — |
| Ia North Lake Vol Fire Dept | 0 | 0% | 0% | 0% | — |
| Ia Eagle Vol Fire Dept | 0 | 0% | 0% | 0% | — |
| Ia Okauchee Fire Dept | 0 | 0% | 0% | 0% | — |
| Ia Delafield City Fire Dept | 0 | 0% | 0% | 0% | — |
| Ia Wales Genesee Fire Dept | 0 | 0% | 0% | 0% | — |
| Ia Stone Bank FD | 0 | 0% | 0% | 0% | — |
| Ia Oconomowoc Fire Dept | 0 | 0% | 0% | 0% | — |
| Ia Delafield Twp Vol Fire Dept | 0 | 0% | 0% | 0% | — |
| Ia Lannon Fire Dept | 0 | 0% | 0% | 0% | — |
| Ia Chenequa Vol Fire Dept | 0 | 0% | 0% | 0% | — |
| Ia Summit Vol Fire Dist | 0 | 0% | 0% | 0% | — |
| Ia Improper | 0 | 0% | 0% | 0% | — |
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