ZIP 53151 recorded 175 fire and hazmat incidents in 2025, 915 across 2021–2025. Primary county: Waukesha County, WI. FEMA NRI rates wildfire risk here as Moderate.
915 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 204 | |
| 2022 | 162 | |
| 2023 | 167 | |
| 2024 | 207 | |
| 2025 | 175 |
Aug peaks. Feb dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 53151 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Gas leak (natural gas or LPG) | 136 | 14.9% | |
| 2 | Cooking fire, confined to container | 127 | 13.9% | |
| 3 | Building fires | 98 | 10.7% | |
| 4 | Electrical wiring/equipment problem, other | 88 | 9.6% | |
| 5 | Power line down | 86 | 9.4% |
For the 15 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 53151 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 25 | 25.0% | |
| 2 | Cooking area, kitchen | 11 | 11.0% | |
| 3 | Vehicle storage area; garage, carport | 8 | 8.0% | |
| 4 | Vehicle area, other | 5 | 5.0% | |
| 5 | Machinery room or area; elevator machinery room | 4 | 4.0% | |
| 6 | Cargo/trunk area - all vehicles | 4 | 4.0% | |
| 7 | Exterior, exposed surface | 4 | 4.0% | |
| 8 | Common room, den, family room, living room, lounge | 3 | 3.0% | |
| 9 | All other areas | 36 | 36.0% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 32 | 32.0% | |
| 2 | Heat from powered equipment, other | 24 | 24.0% | |
| 3 | Spark, ember or flame from operating equipment | 10 | 10.0% | |
| 4 | Radiated, conducted heat from operating equipment | 9 | 9.0% | |
| 5 | Heat source: other | 6 | 6.0% | |
| 6 | Hot ember or ash | 5 | 5.0% | |
| 7 | Arcing | 4 | 4.0% | |
| 8 | Heat from direct flame, convection currents | 3 | 3.0% | |
| 9 | All other sources | 7 | 7.0% |
Largest single-incident losses in ZIP 53151 across 2021–2025. These 8 fires alone account for 1266% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $350,000 | Passenger vehicle fire | 2021 | Major |
| 2 | $200,000 | Building fires | 2023 | Significant |
| 3 | $180,000 | Mobile property (vehicle) fire, other | 2023 | Significant |
| 4 | $125,000 | Building fires | 2024 | Significant |
| 5 | $120,000 | Building fires | 2023 | Significant |
| 6 | $100,000 | Building fires | 2021 | Significant |
| 7 | $100,000 | Building fires | 2021 | Significant |
| 8 | $100,000 | Building fires | 2022 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 53151.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | New Berlin | 911 | |
| 2 | Muskego | 2 | |
| 3 | Menomonee Falls | 1 | |
| 4 | 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 — 915 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.