ZIP 54923 recorded 91 fire and hazmat incidents in 2025, 304 across 2021–2025. Primary county: Green Lake County, WI. FEMA NRI rates wildfire risk here as Moderate.
304 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 38 | |
| 2022 | 46 | |
| 2023 | 70 | |
| 2024 | 59 | |
| 2025 | 91 |
Mar peaks. Sep dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 54923 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 105 | 34.5% | |
| 2 | Brush, or brush and grass mixture fire | 26 | 8.6% | |
| 3 | Power line down | 19 | 6.2% | |
| 4 | Grass fire | 18 | 5.9% | |
| 5 | Gas leak (natural gas or LPG) | 18 | 5.9% |
For the 39 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 54923 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 30 | 37.0% | |
| 2 | Engine area, running gear, wheel area | 17 | 21.0% | |
| 3 | Open area - outside; included are farmland, field | 15 | 18.5% | |
| 4 | Bedroom - < 5 persons; included are jail or prison | 2 | 2.5% | |
| 5 | Cooking area, kitchen | 2 | 2.5% | |
| 6 | Vehicle storage area; garage, carport | 2 | 2.5% | |
| 7 | Substructure area or space, crawl space | 2 | 2.5% | |
| 8 | Ceiling & floor assembly, crawl space b/t stories | 2 | 2.5% | |
| 9 | All other areas | 9 | 11.1% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 74 | 91.4% | |
| 2 | Hot ember or ash | 3 | 3.7% | |
| 3 | Arcing | 1 | 1.2% | |
| 4 | Heat, spark from friction | 1 | 1.2% | |
| 5 | Fireworks | 1 | 1.2% | |
| 6 | Flame/torch used for lighting | 1 | 1.2% |
Largest single-incident losses in ZIP 54923 across 2021–2025. These 8 fires alone account for 189% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $1,000,000 | Mobile property (vehicle) fire, other | 2022 | Major |
| 2 | $1,000,000 | Building fires | 2023 | Major |
| 3 | $1,000,000 | Building fires | 2025 | Major |
| 4 | $500,000 | Building fires | 2025 | Major |
| 5 | $430,000 | Building fires | 2025 | Major |
| 6 | $250,000 | Building fires | 2025 | Major |
| 7 | $175,000 | Off-road vehicle or heavy equipment fire | 2023 | Significant |
| 8 | $100,000 | Road freight or transport vehicle fire | 2023 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 54923.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Berlin | 301 |
Some ZIPs span multiple counties. The primary above is the largest by population weight; secondary counties are below.
| County | State | Weight | |
|---|---|---|---|
| Winnebago County | WI | 1.00 | FIPS 55139 |
| Waushara County | WI | 0.50 | FIPS 55137 |
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 — 304 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.