ZIP 53046 recorded 10 fire and hazmat incidents in 2025, 54 across 2021–2025. Primary county: Waukesha County, WI. FEMA NRI rates wildfire risk here as Moderate.
54 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 17 | |
| 2022 | 5 | |
| 2023 | 8 | |
| 2024 | 14 | |
| 2025 | 10 |
Nov peaks. May dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 53046 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 12 | 22.2% | |
| 2 | Gas leak (natural gas or LPG) | 7 | 13.0% | |
| 3 | Carbon monoxide incident | 7 | 13.0% | |
| 4 | Power line down | 7 | 13.0% | |
| 5 | Outside rubbish, trash or waste fire | 4 | 7.4% |
For the 0 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 53046 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 2 | 28.6% | |
| 2 | Exterior stairway, ramp, or fire escape | 1 | 14.3% | |
| 3 | Cooking area, kitchen | 1 | 14.3% | |
| 4 | Machinery room or area; elevator machinery room | 1 | 14.3% | |
| 5 | Exterior balcony, unenclosed porch | 1 | 14.3% | |
| 6 | Open area - outside; included are farmland, field | 1 | 14.3% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Radiated, conducted heat from operating equipment | 2 | 28.6% | |
| 2 | Undetermined | 2 | 28.6% | |
| 3 | Spark, ember or flame from operating equipment | 1 | 14.3% | |
| 4 | Hot ember or ash | 1 | 14.3% | |
| 5 | Heat from other open flame or smoking materials | 1 | 14.3% |
Largest single-incident losses in ZIP 53046 across 2021–2025. These 5 fires alone account for 0% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $60,000 | Road freight or transport vehicle fire | 2021 | Significant |
| 2 | $50,000 | Building fires | 2023 | Significant |
| 3 | $40,000 | Building fires | 2024 | Significant |
| 4 | $21,000 | Passenger vehicle fire | 2021 | Significant |
| 5 | $1,000 | Building fires | 2021 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 53046.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Lannon | 50 | |
| 2 | Menomonee Falls | 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 — 54 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.