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2025 Annual Fire Report

Fires in Markesan, Wisconsin

In 2025, fire departments serving Markesan responded to 56 fire and hazmat incidents — from cooking fires to gas leaks to a single $400K building blaze. Here's the full picture.

Updated Sep 27, 2026 Grade C Peak yr 2025 Green Lake County 1,292 residents 0 reporting departments 240 5-yr
Total incidents
56
+9.8% vs 2024
Building fires
18
Residential 67% Other 33%
Property loss
$1.1M
$906K structure · $229K contents
Deaths & injuries
0 / 0
0 civilian deaths · 0 civ injuries · 0 firefighter injuries
01 The mix

What kinds of fires happen here?

Building fires lead by count. Building fires lead by dollars. Together the top five categories make up about 64% of all calls.

56
Total Incidents
Building fires 18 32.1%
Aircraft standby 7 12.5%
Accident, potential accident, other 5 8.9%
Trash or rubbish fire, contained 3 5.4%
Electrical wiring/equipment problem, other 3 5.4%
All other categories 20 35.7%
02 Seasonality

When do fires happen?

May peaks. Sep dips. Watch for the typical fall climb starting in October.

Jan 4
Feb 7
Mar 4
Apr 3
May 13
Jun 6
Jul 4
Aug 3
Sep 1
Oct 6
Nov 2
Dec 3
Fewer
More
2b Five-year trend

Year over year in Markesan

240 incidents 2021–2025. Peak year was 2025. $4.2M cumulative property loss.

YearIncidentsYoY 
2021 49 —
2022 41 -16.3%
2023 43 +4.9%
2024 51 +18.6%
2025 56 +9.8%
03 Cause of ignition

What sparks building fires?

For the 18 building fires Markesan departments responded to in 2025, here's how they were classified once investigators were finished.

Unintentional
64%
7
Cause undetermined
0%
0
Intentional / arson
9%
1
Equipment / heat source failure
27%
3
Under investigation
0%
0
Act of nature (lightning)
0%
0
3b Where fires start

Where do fires start in Markesan?

NFIRS Area of Origin (AREA_ORIG) for the 50 building fires investigators classified across 2021–2025. The room or location where ignition occurred — kitchens, bedrooms, exterior, vehicle areas — tells you where to focus prevention.

#Area of originCountShare 
1 Engine area, running gear, wheel area 8 16.0%
2 Undetermined 6 12.0%
3 Cooking area, kitchen 5 10.0%
4 Open area - outside; included are farmland, field 4 8.0%
5 Storage area, other 3 6.0%
6 Wall assembly 3 6.0%
7 Entrance way, lobby 2 4.0%
8 Roof surface: exterior 2 4.0%
9 Outside area, other 2 4.0%
10 Interior stairway or ramp 1 2.0%
11 All other areas 14 28.0%
3c What ignited it

What actually ignited the fire?

NFIRS Heat Source (HEAT_SOURC) — the physical thing that started it. Spark or ember from operating equipment, an open flame, smoking materials, or hot embers from a fireplace are the leading culprits nationwide. Here's the Markesan mix.

#Heat sourceCountShare 
1 Undetermined 14 28.0%
2 Heat source: other 8 16.0%
3 Heat from powered equipment, other 8 16.0%
4 Arcing 3 6.0%
5 Spark, ember or flame from operating equipment 2 4.0%
6 Hot or smoldering object, other 2 4.0%
7 Heat spread from another fire, other 2 4.0%
8 Heat from direct flame, convection currents 2 4.0%
9 Flying brand, ember, spark 2 4.0%
10 Heat, spark from friction 1 2.0%
11 All other sources 6 12.0%
04 The biggest fires

6 fires · $906K in losses

Largest single-incident property losses reported by Markesan departments in 2025. These 6 fires alone account for 100% of the city's annual total.

# Property loss Type Severity Status
1 $400,000 Building fires Major Investigated
2 $200,000 Building fires Significant Investigated
3 $120,000 Building fires Significant Investigated
4 $110,000 Building fires Significant Investigated
5 $75,000 Building fires Significant Investigated
6 $1,000 Building fires Significant Investigated
05 How Markesan compares

Markesan vs Wisconsin vs the nation

Per-capita rates let us compare apples to apples. Markesan sits above the national average for incidents per resident.

43.34
Incidents per 1,000 residents
Markesan
43.34
WI avg
8.73
US avg
7.48
13.93
Building fires per 1,000 residents
Markesan
13.93
WI avg
1.74
US avg
0.85
0
Civilian fire deaths per million
Markesan
0
WI avg
14.4
US avg
5.9
5c Wildfires nearby

Wildfires within 50 mi of Markesan

Top 25 wildfires (1992+) in the FPA-FOD ignitions database, scaled by acres. 14,413 acres burned in this 50-mile radius. Each dot is a fire — bigger dots burned more land.

50 mi radius
YearCauseAcresDistance 
2005 Debris and open burning 3,410 45.7 mi
2003 Arson/incendiarism 1,100 32.8 mi
1994 Arson/incendiarism 1,015 17.6 mi
2014 Debris and open burning 829 11.6 mi
1998 Equipment and vehicle use 630 11.7 mi
2006 Debris and open burning 612 13.4 mi
2003 Debris and open burning 572 24.8 mi
2003 Missing data/not specified/undetermined 508 25.3 mi
2003 Missing data/not specified/undetermined 500 42.9 mi
2003 Arson/incendiarism 484 15.2 mi
2003 Missing data/not specified/undetermined 400 29.1 mi
2019 Arson/incendiarism 385 34.9 mi
5d Top ZIPs

Where in Markesan do fires concentrate?

Top 4 ZIP codes by NFIRS incident count across 2021–2025. Each ZIP has its own fire profile — dive in for neighborhood-level context.

#ZIP5-yr incidents 
1 53946 237
2 53646 1
3 53947 1
4 54946 1
5e Peer cities

Cities similar to Markesan

Six Wisconsin cities with population within ±25% of Markesan. Useful comparison targets — same state, similar size, different fire profile.

07 Stay prepared

Before the next Red Flag day.

A 30-minute weekend can cut your home's exposure substantially. These four checklists are a good starting point.

About this data

Numbers reflect incidents reported by participating fire departments to the National Fire Incident Reporting System (NFIRS) Public Data Release for calendar year 2025. NFIRS is voluntary — about 23,000 of roughly 30,000 US fire departments report — so totals are a strong indicator, not a complete census. Per-capita comparisons use 2023 ACS population estimates. Wildland fire data complements NFIRS with NIFC and USFS perimeters. Active-fire counts come from a dated NIFC snapshot, not a live feed.