ZIP 53187 is served primarily by Waukesha County, WI — including Waukesha. ZIP-level data is sparse — showing the Waukesha County aggregate. FEMA NRI rates wildfire risk here as Moderate.
Jul peaks. Feb dips. ZIP-level seasonality is sparse — this is the county aggregate.
Top 5 NFIRS incident types — county-level breakdown.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 435 | 19.6% | |
| 2 | Gas leak (natural gas or LPG) | 329 | 14.9% | |
| 3 | Electrical wiring/equipment problem, other | 166 | 7.5% | |
| 4 | Arcing, shorted electrical equipment | 161 | 7.3% | |
| 5 | Power line down | 145 | 6.5% |
26 cities sit in Waukesha County. Click for the per-city NFIRS profile.
| # | City | Population | 2025 incidents | Building fires | Grade |
|---|---|---|---|---|---|
| 1 | Waukesha | 70,945 | 474 | 96 | B+ |
| 2 | Brookfield | 41,342 | 257 | 38 | A- |
| 3 | New Berlin | 40,387 | 258 | 39 | A |
| 4 | Menomonee Falls | 38,610 | 7 | 4 | A |
| 5 | Muskego | 25,073 | 77 | 19 | A+ |
| 6 | Oconomowoc | 18,178 | 43 | 21 | B |
| 7 | Pewaukee | 15,817 | 138 | 32 | A- |
| 8 | Sussex | 11,549 | 54 | 12 | A |
| 9 | Hartland | 9,599 | 101 | 29 | A- |
| 10 | Mukwonago | 8,311 | 122 | 43 | B+ |
| 11 | Vernon | 7,478 | 35 | 3 | A |
| 12 | Delafield | 7,181 | 45 | 2 | B |
| 13 | Elm Grove | 6,445 | 38 | 4 | A- |
| 14 | Summit | 4,914 | 2 | 1 | A- |
| 15 | Okauchee Lake | 4,690 | 0 | 0 | A+ |
| 16 | Merton | 3,463 | 12 | 9 | B+ |
| 17 | Wales | 2,880 | 15 | 2 | A |
| 18 | North Prairie | 2,485 | 9 | 0 | A+ |
| 19 | Dousman | 2,099 | 18 | 13 | B |
| 20 | Eagle | 2,050 | 28 | 2 | B- |
| 21 | Butler | 1,906 | 25 | 1 | B |
| 22 | Big Bend | 1,407 | 4 | 1 | C+ |
| 23 | Lannon | 1,351 | 14 | 0 | B+ |
| 24 | Nashotah | 1,216 | 11 | 0 | A- |
| 25 | Chenequa | 783 | 3 | 3 | B- |
| 26 | Oconomowoc Lake | 691 | 0 | 0 | B |
The figures above are historical. For today's air quality, fire-weather warnings, and active fires, go to the official sources.
This ZIP doesn't have enough NFIRS coverage on its own (under 10 reported incidents across 2021–2025) to publish ZIP-level statistics, so we're showing the Waukesha County aggregate above. NFIRS reporting is voluntary and many rural ZIPs roll up to broader county totals. The ZIP-to-county mapping uses SimpleMaps' uscities.zips dataset.