ZIP 53186 recorded 196 fire and hazmat incidents in 2025, 931 across 2021–2025. Primary county: Waukesha County, WI. FEMA NRI rates wildfire risk here as Moderate.
931 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 90 | |
| 2022 | 183 | |
| 2023 | 193 | |
| 2024 | 269 | |
| 2025 | 196 |
Jul peaks. Apr dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 53186 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 148 | 15.9% | |
| 2 | Gas leak (natural gas or LPG) | 137 | 14.7% | |
| 3 | Power line down | 86 | 9.2% | |
| 4 | Cooking fire, confined to container | 73 | 7.8% | |
| 5 | Carbon monoxide incident | 72 | 7.7% |
For the 27 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 53186 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 41 | 19.6% | |
| 2 | Cooking area, kitchen | 23 | 11.0% | |
| 3 | Outside area, other | 15 | 7.2% | |
| 4 | Bedroom - < 5 persons; included are jail or prison | 12 | 5.7% | |
| 5 | Undetermined | 12 | 5.7% | |
| 6 | Bathroom, checkroom, lavatory, locker room | 6 | 2.9% | |
| 7 | Laundry area, wash house (laundry) | 6 | 2.9% | |
| 8 | Chute/container - trash, rubbish, waste | 6 | 2.9% | |
| 9 | All other areas | 88 | 42.1% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 88 | 42.1% | |
| 2 | Heat from powered equipment, other | 21 | 10.0% | |
| 3 | Arcing | 17 | 8.1% | |
| 4 | Radiated, conducted heat from operating equipment | 16 | 7.7% | |
| 5 | Cigarette | 13 | 6.2% | |
| 6 | Hot ember or ash | 12 | 5.7% | |
| 7 | Hot or smoldering object, other | 8 | 3.8% | |
| 8 | Heat source: other | 6 | 2.9% | |
| 9 | All other sources | 28 | 13.4% |
Largest single-incident losses in ZIP 53186 across 2021–2025. These 8 fires alone account for 853% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $2,000,000 | Building fires | 2021 | Major |
| 2 | $1,600,000 | Building fires | 2024 | Major |
| 3 | $350,000 | Building fires | 2024 | Major |
| 4 | $250,000 | Building fires | 2022 | Major |
| 5 | $200,000 | Building fires | 2022 | Significant |
| 6 | $200,000 | Building fires | 2025 | Significant |
| 7 | $145,000 | Building fires | 2025 | Significant |
| 8 | $130,000 | Building fires | 2023 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 53186.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Waukesha | 802 | |
| 2 | Pewaukee | 75 | |
| 3 | Brookfield | 40 | |
| 4 | New Berlin | 5 | |
| 5 | Vernon | 2 |
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 — 931 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.