ZIP 53018 recorded 46 fire and hazmat incidents in 2025, 247 across 2021–2025. Primary county: Waukesha County, WI. FEMA NRI rates wildfire risk here as Moderate.
247 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 44 | |
| 2022 | 41 | |
| 2023 | 64 | |
| 2024 | 52 | |
| 2025 | 46 |
Jul peaks. Oct dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 53018 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Electrical wiring/equipment problem, other | 33 | 13.4% | |
| 2 | Gas leak (natural gas or LPG) | 31 | 12.6% | |
| 3 | Power line down | 21 | 8.5% | |
| 4 | Building fires | 19 | 7.7% | |
| 5 | Passenger vehicle fire | 18 | 7.3% |
For the 4 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 53018 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 15 | 30.6% | |
| 2 | Outside area, other | 9 | 18.4% | |
| 3 | Wildland, woods | 4 | 8.2% | |
| 4 | Undetermined | 4 | 8.2% | |
| 5 | Cooking area, kitchen | 3 | 6.1% | |
| 6 | Open area - outside; included are farmland, field | 3 | 6.1% | |
| 7 | Wall surface: exterior | 2 | 4.1% | |
| 8 | Exterior, exposed surface | 2 | 4.1% | |
| 9 | All other areas | 7 | 14.3% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 15 | 30.6% | |
| 2 | Spark, ember or flame from operating equipment | 4 | 8.2% | |
| 3 | Radiated, conducted heat from operating equipment | 4 | 8.2% | |
| 4 | Hot ember or ash | 4 | 8.2% | |
| 5 | Flame/torch used for lighting | 4 | 8.2% | |
| 6 | Match | 3 | 6.1% | |
| 7 | Heat from powered equipment, other | 2 | 4.1% | |
| 8 | Chemical reaction | 2 | 4.1% | |
| 9 | All other sources | 11 | 22.4% |
Largest single-incident losses in ZIP 53018 across 2021–2025. These 8 fires alone account for 150% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $500,000 | Off-road vehicle or heavy equipment fire | 2025 | Major |
| 2 | $100,000 | Building fires | 2023 | Significant |
| 3 | $100,000 | Building fires | 2024 | Significant |
| 4 | $40,000 | Passenger vehicle fire | 2024 | Significant |
| 5 | $27,000 | Passenger vehicle fire | 2021 | Significant |
| 6 | $25,000 | Building fires | 2024 | Significant |
| 7 | $20,000 | Passenger vehicle fire | 2023 | Significant |
| 8 | $17,000 | Passenger vehicle fire | 2023 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 53018.
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 — 247 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.