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2025 Annual Fire Report

Fires in Warren, Maine

In 2025, fire departments serving Warren responded to 26 fire and hazmat incidents — from cooking fires to gas leaks to a single $100K building blaze. Here's the full picture.

Updated Sep 27, 2026 Grade B+ Peak yr 2022 Knox County 4,873 residents 1 reporting departments 143 5-yr
Total incidents
26
-7.1% vs 2024
Building fires
8
Residential 63% Other 37%
Property loss
$177K
$128K structure · $49K contents
Deaths & injuries
1 / 0
1 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 69% of all calls.

26
Total Incidents
Building fires 8 30.8%
Power line down 5 19.2%
Passenger vehicle fire 2 7.7%
Biological hazard, confirmed or suspected 2 7.7%
Chimney or flue fire, confined to chimney or flue 1 3.8%
All other categories 8 30.8%
02 Seasonality

When do fires happen?

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

Jan 4
Feb 3
Mar 0
Apr 8
May 0
Jun 3
Jul 4
Aug 1
Sep 2
Oct 1
Nov 0
Dec 0
Fewer
More
2b Five-year trend

Year over year in Warren

143 incidents 2021–2025. Peak year was 2022. $470K cumulative property loss. 1 civilian deaths.

YearIncidentsYoY 
2021 26 —
2022 33 +26.9%
2023 30 -9.1%
2024 28 -6.7%
2025 26 -7.1%
03 Cause of ignition

What sparks building fires?

For the 8 building fires Warren departments responded to in 2025, here's how they were classified once investigators were finished.

Unintentional
20%
1
Cause undetermined
40%
2
Intentional / arson
20%
1
Equipment / heat source failure
20%
1
Under investigation
0%
0
Act of nature (lightning)
0%
0
3b Where fires start

Where do fires start in Warren?

NFIRS Area of Origin (AREA_ORIG) for the 27 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 13 48.1%
2 Cooking area, kitchen 2 7.4%
3 Wall surface: exterior 2 7.4%
4 Bathroom, checkroom, lavatory, locker room 1 3.7%
5 Laundry area, wash house (laundry) 1 3.7%
6 Storage room, area, tank, or bin 1 3.7%
7 Vehicle storage area; garage, carport 1 3.7%
8 Heating room or area, water heater area 1 3.7%
9 Maintenance shop or area, paint shop or area 1 3.7%
10 Substructure area or space, crawl space 1 3.7%
11 All other areas 3 11.1%
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 Warren mix.

#Heat sourceCountShare 
1 Undetermined 10 37.0%
2 Radiated, conducted heat from operating equipment 7 25.9%
3 Arcing 2 7.4%
4 Hot ember or ash 2 7.4%
5 Spark, ember or flame from operating equipment 1 3.7%
6 Heat, spark from friction 1 3.7%
7 Molten, hot material 1 3.7%
8 Backfire from internal combustion engine 1 3.7%
9 Heat from direct flame, convection currents 1 3.7%
10 Flying brand, ember, spark 1 3.7%
04 The biggest fires

4 fires · $128K in losses

Largest single-incident property losses reported by Warren departments in 2025. These 4 fires alone account for 100% of the city's annual total.

# Property loss Type Severity Status
1 $100,000 Building fires Significant Investigated
2 $17,000 Fire in motor home, camper, recreational vehicle Significant Investigated
3 $6,000 Passenger vehicle fire Significant Investigated
4 $5,000 Passenger vehicle fire Significant Investigated
05 How Warren compares

Warren vs Maine vs the nation

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

5.34
Incidents per 1,000 residents
Warren
5.34
ME avg
10.96
US avg
7.48
1.64
Building fires per 1,000 residents
Warren
1.64
ME avg
1.72
US avg
0.85
205.2
Civilian fire deaths per million
Warren
205.2
ME avg
3.6
US avg
5.9
5c Wildfires nearby

Wildfires within 50 mi of Warren

Top 25 wildfires (1992+) in the FPA-FOD ignitions database, scaled by acres. 666 acres burned in this 50-mile radius. Each dot is a fire — bigger dots burned more land.

50 mi radius
YearCauseAcresDistance 
2001 Debris and open burning 77 20.2 mi
2002 Recreation and ceremony 57 22.8 mi
1992 Debris and open burning 50 46.8 mi
2015 Debris and open burning 48 17.1 mi
1995 Missing data/not specified/undetermined 40 39.7 mi
2016 Misuse of fire by a minor 35 26.3 mi
1999 Missing data/not specified/undetermined 33 35.4 mi
2013 Arson/incendiarism 32 45.7 mi
1992 Debris and open burning 29 42.5 mi
1999 Missing data/not specified/undetermined 25 37.8 mi
2001 Debris and open burning 20 38.1 mi
2005 Debris and open burning 17 31.5 mi
5d Top ZIPs

Where in Warren do fires concentrate?

Top 2 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 04864 142
2 04547 1
5e Peer cities

Cities similar to Warren

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

06 First responders

Who responds in Warren?

1 departments report to NFIRS for incidents in Warren.

Warren Fire Department
177 Western RD
FDID G49601 paid
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.