ZIP 53005 recorded 122 fire and hazmat incidents in 2025, 781 across 2021–2025. Primary county: Waukesha County, WI. FEMA NRI rates wildfire risk here as Moderate.
781 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 169 | |
| 2022 | 133 | |
| 2023 | 164 | |
| 2024 | 193 | |
| 2025 | 122 |
Aug peaks. Feb dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 53005 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Power line down | 145 | 18.6% | |
| 2 | Building fires | 100 | 12.8% | |
| 3 | Gas leak (natural gas or LPG) | 91 | 11.7% | |
| 4 | Arcing, shorted electrical equipment | 78 | 10.0% | |
| 5 | Electrical wiring/equipment problem, other | 55 | 7.0% |
For the 16 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 53005 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 37 | 21.8% | |
| 2 | Outside area, other | 33 | 19.4% | |
| 3 | Cooking area, kitchen | 19 | 11.2% | |
| 4 | Highway, parking lot, street: on or near | 16 | 9.4% | |
| 5 | Open area - outside; included are farmland, field | 8 | 4.7% | |
| 6 | Laundry area, wash house (laundry) | 7 | 4.1% | |
| 7 | Vehicle storage area; garage, carport | 7 | 4.1% | |
| 8 | Other | 6 | 3.5% | |
| 9 | All other areas | 37 | 21.8% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 47 | 27.6% | |
| 2 | Heat from powered equipment, other | 28 | 16.5% | |
| 3 | Cigarette | 15 | 8.8% | |
| 4 | Radiated, conducted heat from operating equipment | 14 | 8.2% | |
| 5 | Arcing | 9 | 5.3% | |
| 6 | Heat source: other | 8 | 4.7% | |
| 7 | Hot or smoldering object, other | 8 | 4.7% | |
| 8 | Heat from direct flame, convection currents | 7 | 4.1% | |
| 9 | All other sources | 34 | 20.0% |
Largest single-incident losses in ZIP 53005 across 2021–2025. These 8 fires alone account for 387% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $300,000 | Building fires | 2023 | Major |
| 2 | $300,000 | Fire, other | 2023 | Major |
| 3 | $200,000 | Building fires | 2023 | Significant |
| 4 | $165,000 | Passenger vehicle fire | 2024 | Significant |
| 5 | $150,000 | Building fires | 2025 | Significant |
| 6 | $100,000 | Building fires | 2022 | Significant |
| 7 | $100,000 | Building fires | 2024 | Significant |
| 8 | $100,000 | Building fires | 2025 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 53005.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Brookfield | 780 | |
| 2 | Milwaukee | 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 — 781 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.