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2025 Annual Fire Report

Fires in Oskaloosa, Iowa

In 2025, fire departments serving Oskaloosa responded to 222 fire and hazmat incidents — from cooking fires to gas leaks to a single $55K building blaze. Here's the full picture.

Updated Sep 27, 2026 Grade B- Peak yr 2025 Mahaska County 11,492 residents 0 reporting departments 982 5-yr
Total incidents
222
+5.2% vs 2024
Building fires
11
Residential 64% Other 36%
Property loss
$303K
$192K structure · $111K contents
Deaths & injuries
0 / 0
0 civilian deaths · 0 civ injuries · 0 firefighter injuries
01 The mix

What kinds of fires happen here?

Authorized controlled burning lead by count. Building fires lead by dollars. Together the top five categories make up about 60% of all calls.

222
Total Incidents
Authorized controlled burning 36 16.2%
Power line down 28 12.6%
Vehicle accident, general cleanup 28 12.6%
Unauthorized burning 27 12.2%
Gas leak (natural gas or LPG) 14 6.3%
All other categories 89 40.1%
02 Seasonality

When do fires happen?

Apr peaks. Oct dips. Watch for the typical fall climb starting in October.

Jan 19
Feb 11
Mar 28
Apr 37
May 21
Jun 16
Jul 19
Aug 15
Sep 13
Oct 8
Nov 16
Dec 19
Fewer
More
2b Five-year trend

Year over year in Oskaloosa

982 incidents 2021–2025. Peak year was 2025. $3.6M cumulative property loss.

YearIncidentsYoY 
2021 176 —
2022 195 +10.8%
2023 178 -8.7%
2024 211 +18.5%
2025 222 +5.2%
03 Cause of ignition

What sparks building fires?

For the 11 building fires Oskaloosa departments responded to in 2025, here's how they were classified once investigators were finished.

Unintentional
80%
16
Cause undetermined
0%
0
Intentional / arson
10%
2
Equipment / heat source failure
5%
1
Under investigation
0%
0
Act of nature (lightning)
5%
1
3b Where fires start

Where do fires start in Oskaloosa?

NFIRS Area of Origin (AREA_ORIG) for the 110 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 29 26.4%
2 Undetermined 17 15.5%
3 Open area - outside; included are farmland, field 10 9.1%
4 Wall surface: exterior 7 6.4%
5 Vehicle storage area; garage, carport 5 4.5%
6 Outside area, other 5 4.5%
7 Cooking area, kitchen 4 3.6%
8 Function area, other 3 2.7%
9 Highway, parking lot, street: on or near 3 2.7%
10 Assembly or sales area, other 2 1.8%
11 All other areas 25 22.7%
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 Oskaloosa mix.

#Heat sourceCountShare 
1 Undetermined 45 40.9%
2 Arcing 10 9.1%
3 Radiated, conducted heat from operating equipment 9 8.2%
4 Heat from powered equipment, other 7 6.4%
5 Hot ember or ash 6 5.5%
6 Hot or smoldering object, other 4 3.6%
7 Heat from other open flame or smoking materials 4 3.6%
8 Heat source: other 3 2.7%
9 Spark, ember or flame from operating equipment 3 2.7%
10 Flying brand, ember, spark 3 2.7%
11 All other sources 16 14.5%
04 The biggest fires

8 fires · $185K in losses

Largest single-incident property losses reported by Oskaloosa departments in 2025. These 8 fires alone account for 96% of the city's annual total.

# Property loss Type Severity Status
1 $55,000 Off-road vehicle or heavy equipment fire Significant Investigated
2 $50,000 Building fires Significant Investigated
3 $50,000 Building fires Significant Investigated
4 $10,000 Building fires Significant Investigated
5 $7,500 Building fires Significant Investigated
6 $5,000 Off-road vehicle or heavy equipment fire Significant Investigated
7 $4,500 Passenger vehicle fire Significant Investigated
8 $2,500 Passenger vehicle fire Significant Investigated
05 How Oskaloosa compares

Oskaloosa vs Iowa vs the nation

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

19.32
Incidents per 1,000 residents
Oskaloosa
19.32
IA avg
9.41
US avg
7.48
0.96
Building fires per 1,000 residents
Oskaloosa
0.96
IA avg
1.15
US avg
0.85
0
Civilian fire deaths per million
Oskaloosa
0
IA avg
7.3
US avg
5.9
5c Wildfires nearby

Wildfires within 50 mi of Oskaloosa

Top 25 wildfires (1992+) in the FPA-FOD ignitions database, scaled by acres. 9,894 acres burned in this 50-mile radius. Each dot is a fire — bigger dots burned more land.

50 mi radius
YearCauseAcresDistance 
2005 Arson/incendiarism 1,200 44.6 mi
2014 Debris and open burning 1,000 7.0 mi
2011 Missing data/not specified/undetermined 824 45.7 mi
2017 Debris and open burning 640 39.3 mi
2020 Debris and open burning 500 31.2 mi
2014 Missing data/not specified/undetermined 500 24.9 mi
2015 Debris and open burning 500 32.5 mi
2020 Debris and open burning 454 49.1 mi
2018 Debris and open burning 402 43.8 mi
2004 Debris and open burning 400 48.7 mi
2006 Missing data/not specified/undetermined 360 44.7 mi
2017 Missing data/not specified/undetermined 340 36.8 mi
5d Top ZIPs

Where in Oskaloosa do fires concentrate?

Top 1 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 52577 982
5e Peer cities

Cities similar to Oskaloosa

Six Iowa cities with population within ±25% of Oskaloosa. 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.