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ZIP-level NFIRS data

Fires in ZIP 54173

ZIP 54173 recorded 40 fire and hazmat incidents in 2025, 256 across 2021–2025. Primary county: Brown County, WI.

ZIP 54173 FIPS 55009 ZIP-level
Total incidents (2025)
40
256 across 5 years
Building fires
14
4 wildland
Wildfire risk
34
FEMA NRI · Low
Active fires
0
in Brown County
01 Five-year trend

Year over year in ZIP 54173

256 incidents from 2021 through 2025 inside this ZIP.

YearIncidents 
2021 71
2022 73
2023 47
2024 25
2025 40
02 Seasonality

When do fires happen in ZIP 54173?

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

Jan 13
Feb 29
Mar 12
Apr 20
May 30
Jun 39
Jul 20
Aug 13
Sep 12
Oct 20
Nov 25
Dec 23
03 Top incident types

What kinds of calls lead in ZIP 54173?

Top 5 NFIRS incident types for ZIP 54173 across 2021–2025.

#Incident typeCountShare 
1 Power line down 55 21.5%
2 Carbon monoxide incident 45 17.6%
3 Building fires 35 13.7%
4 Passenger vehicle fire 20 7.8%
5 Gas leak (natural gas or LPG) 19 7.4%
04 Cause of ignition

What sparks fires in ZIP 54173?

For the 14 building fires reported here in 2025, here's how investigators classified ignition cause.

Unintentional
59%
37
Cause undetermined
5%
3
Intentional / arson
5%
3
Equipment / heat source failure
25%
16
Under investigation
3%
2
Act of nature (lightning)
3%
2
05 Where fires start

Where in the building fires start

NFIRS Area of Origin for ZIP 54173 fires across 2021–2025.

#Area of originCountShare 
1 Engine area, running gear, wheel area 15 23.8%
2 Wildland, woods 7 11.1%
3 Common room, den, family room, living room, lounge 6 9.5%
4 Cooking area, kitchen 4 6.3%
5 Vehicle area, other 4 6.3%
6 Chute/container - trash, rubbish, waste 3 4.8%
7 Vehicle storage area; garage, carport 3 4.8%
8 Wall surface: exterior 3 4.8%
9 All other areas 18 28.6%
06 What ignited it

The leading heat sources here

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

#Heat sourceCountShare 
1 Undetermined 13 20.6%
2 Radiated, conducted heat from operating equipment 10 15.9%
3 Heat from powered equipment, other 6 9.5%
4 Hot ember or ash 6 9.5%
5 Spark, ember or flame from operating equipment 4 6.3%
6 Hot or smoldering object, other 3 4.8%
7 Heat source: other 2 3.2%
8 Arcing 2 3.2%
9 All other sources 17 27.0%
07 The biggest fires

8 fires · $3.2M in losses

Largest single-incident losses in ZIP 54173 across 2021–2025. These 8 fires alone account for 114% of the ZIP's 2025 reported total.

#Property lossTypeYearSeverity
1 $1,000,000 Building fires 2025 Major
2 $900,000 Structure fire, other (conversion only) 2025 Major
3 $850,000 Building fires 2025 Major
4 $150,000 Passenger vehicle fire 2023 Significant
5 $100,000 Camper or recreational vehicle (RV) fire 2021 Significant
6 $100,000 Building fires 2023 Significant
7 $30,000 Passenger vehicle fire 2023 Significant
8 $25,000 Off-road vehicle or heavy equipment fire 2022 Significant
08 Cities in this ZIP

Most active cities in ZIP 54173

Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 54173.

#City5-yr incidents 
1 Suamico 249
2 Howard 1
11 Current conditions

Right now in 54173

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 — 256 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.