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ZIP-level NFIRS data

Fires in ZIP 54904

ZIP 54904 recorded 77 fire and hazmat incidents in 2025, 519 across 2021–2025. Primary county: Winnebago County, WI. FEMA NRI rates wildfire risk here as Moderate.

ZIP 54904 FIPS 55139 ZIP-level
Total incidents (2025)
77
519 across 5 years
Building fires
11
15 wildland
Wildfire risk
40
FEMA NRI · Moderate
Active fires
0
in Winnebago County
01 Five-year trend

Year over year in ZIP 54904

519 incidents from 2021 through 2025 inside this ZIP.

YearIncidents 
2021 114
2022 102
2023 98
2024 128
2025 77
02 Seasonality

When do fires happen in ZIP 54904?

Jul peaks. Mar dips. Aggregated across all 5 years inside this ZIP.

Jan 42
Feb 43
Mar 29
Apr 47
May 42
Jun 43
Jul 55
Aug 41
Sep 40
Oct 51
Nov 39
Dec 47
03 Top incident types

What kinds of calls lead in ZIP 54904?

Top 5 NFIRS incident types for ZIP 54904 across 2021–2025.

#Incident typeCountShare 
1 Building fires 90 17.3%
2 Gas leak (natural gas or LPG) 49 9.4%
3 Carbon monoxide incident 42 8.1%
4 Passenger vehicle fire 34 6.6%
5 Unauthorized burning 29 5.6%
04 Cause of ignition

What sparks fires in ZIP 54904?

For the 11 building fires reported here in 2025, here's how investigators classified ignition cause.

Unintentional
45%
70
Cause undetermined
9%
14
Intentional / arson
8%
12
Equipment / heat source failure
24%
37
Under investigation
6%
10
Act of nature (lightning)
8%
7
05 Where fires start

Where in the building fires start

NFIRS Area of Origin for ZIP 54904 fires across 2021–2025.

#Area of originCountShare 
1 Engine area, running gear, wheel area 32 20.5%
2 Outside area, other 18 11.5%
3 Cooking area, kitchen 15 9.6%
4 Open area - outside; included are farmland, field 11 7.1%
5 Undetermined 9 5.8%
6 Vehicle area, other 6 3.8%
7 Operator/passenger area of transportation equip. 6 3.8%
8 Processing/manufacturing area, workroom 5 3.2%
9 All other areas 54 34.6%
06 What ignited it

The leading heat sources here

NFIRS HEAT_SOURC code — the physical thing that started the fire.

#Heat sourceCountShare 
1 Undetermined 42 26.9%
2 Heat from powered equipment, other 16 10.3%
3 Radiated, conducted heat from operating equipment 13 8.3%
4 Arcing 12 7.7%
5 Heat source: other 11 7.1%
6 Spark, ember or flame from operating equipment 9 5.8%
7 Hot or smoldering object, other 9 5.8%
8 Heat, spark from friction 9 5.8%
9 All other sources 35 22.4%
07 The biggest fires

8 fires · $1.3M in losses

Largest single-incident losses in ZIP 54904 across 2021–2025. These 8 fires alone account for 399% of the ZIP's 2025 reported total.

#Property lossTypeYearSeverity
1 $310,000 Building fires 2023 Major
2 $200,000 Building fires 2021 Significant
3 $175,000 Building fires 2021 Significant
4 $150,000 Building fires 2022 Significant
5 $150,000 Building fires 2025 Significant
6 $135,000 Passenger vehicle fire 2025 Significant
7 $125,000 Building fires 2023 Significant
8 $100,000 Building fires 2022 Significant
08 Cities in this ZIP

Most active cities in ZIP 54904

Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 54904.

#City5-yr incidents 
1 Oshkosh 378
2 Algoma 15
3 Neenah 1
11 Current conditions

Right now in 54904

The figures above are historical. For today's air quality, fire-weather warnings, and active fires, go to the official sources.

About ZIP-level data

NFIRS reports each fire incident with a 5-digit address ZIP. We aggregate those rows directly to produce ZIP-level totals — 519 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.