ZIP 53189 recorded 149 fire and hazmat incidents in 2025, 592 across 2021–2025. Primary county: Waukesha County, WI. FEMA NRI rates wildfire risk here as Moderate.
592 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 101 | |
| 2022 | 125 | |
| 2023 | 107 | |
| 2024 | 110 | |
| 2025 | 149 |
Jul peaks. Mar dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 53189 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 190 | 32.1% | |
| 2 | Gas leak (natural gas or LPG) | 68 | 11.5% | |
| 3 | Carbon monoxide incident | 43 | 7.3% | |
| 4 | Electrical wiring/equipment problem, other | 39 | 6.6% | |
| 5 | Power line down | 37 | 6.2% |
For the 59 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 53189 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Other | 12 | 11.7% | |
| 2 | Open area - outside; included are farmland, field | 11 | 10.7% | |
| 3 | Engine area, running gear, wheel area | 9 | 8.7% | |
| 4 | Vehicle storage area; garage, carport | 8 | 7.8% | |
| 5 | Outside area, other | 8 | 7.8% | |
| 6 | Undetermined | 8 | 7.8% | |
| 7 | Vehicle area, other | 5 | 4.9% | |
| 8 | Cooking area, kitchen | 4 | 3.9% | |
| 9 | All other areas | 38 | 36.9% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 39 | 37.9% | |
| 2 | Hot ember or ash | 14 | 13.6% | |
| 3 | Hot or smoldering object, other | 7 | 6.8% | |
| 4 | Heat from powered equipment, other | 6 | 5.8% | |
| 5 | Radiated, conducted heat from operating equipment | 6 | 5.8% | |
| 6 | Cigarette lighter | 4 | 3.9% | |
| 7 | Spark, ember or flame from operating equipment | 3 | 2.9% | |
| 8 | Arcing | 3 | 2.9% | |
| 9 | All other sources | 21 | 20.4% |
Largest single-incident losses in ZIP 53189 across 2021–2025. These 8 fires alone account for 429% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $510,000 | Building fires | 2021 | Major |
| 2 | $400,000 | Building fires | 2022 | Major |
| 3 | $200,000 | Building fires | 2024 | Significant |
| 4 | $150,000 | Building fires | 2021 | Significant |
| 5 | $150,000 | Building fires | 2024 | Significant |
| 6 | $125,000 | Building fires | 2024 | Significant |
| 7 | $100,000 | Building fires | 2022 | Significant |
| 8 | $100,000 | Building fires | 2025 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 53189.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Waukesha | 480 | |
| 2 | Vernon | 28 | |
| 3 | Mukwonago | 6 | |
| 4 | Brookfield | 5 | |
| 5 | Delafield | 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 — 592 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.