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2025 Annual Fire Report

Fires in Ansonia, Connecticut

In 2025, fire departments serving Ansonia responded to 298 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 B- Peak yr 2022 Naugatuck Valley Planning Region 18,954 residents 1 reporting departments 1,615 5-yr
Total incidents
298
+3.5% vs 2024
Building fires
28
Residential 64% Other 36%
Property loss
$1.4M
$1.1M structure · $343K contents
Deaths & injuries
0 / 3
0 civilian deaths · 2 civ injuries · 1 firefighter injuries
01 The mix

What kinds of fires happen here?

Cooking fire, confined to container lead by count. Building fires lead by dollars. Together the top five categories make up about 73% of all calls.

298
Total Incidents
Cooking fire, confined to container 100 33.6%
Vehicle accident, general cleanup 41 13.8%
Gas leak (natural gas or LPG) 33 11.1%
Building fires 28 9.4%
Arcing, shorted electrical equipment 15 5.0%
All other categories 81 27.2%
02 Seasonality

When do fires happen?

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

Jan 18
Feb 41
Mar 19
Apr 37
May 29
Jun 30
Jul 34
Aug 32
Sep 14
Oct 42
Nov 0
Dec 2
Fewer
More
2b Five-year trend

Year over year in Ansonia

1,615 incidents 2021–2025. Peak year was 2022. $4.4M cumulative property loss.

YearIncidentsYoY 
2021 342 —
2022 377 +10.2%
2023 310 -17.8%
2024 288 -7.1%
2025 298 +3.5%
03 Cause of ignition

What sparks building fires?

For the 28 building fires Ansonia departments responded to in 2025, here's how they were classified once investigators were finished.

Unintentional
51%
18
Cause undetermined
14%
5
Intentional / arson
3%
1
Equipment / heat source failure
11%
4
Under investigation
14%
5
Act of nature (lightning)
7%
0
3b Where fires start

Where do fires start in Ansonia?

NFIRS Area of Origin (AREA_ORIG) for the 150 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 23 15.3%
2 Cooking area, kitchen 21 14.0%
3 Open area - outside; included are farmland, field 17 11.3%
4 Bedroom - < 5 persons; included are jail or prison 11 7.3%
5 Highway, parking lot, street: on or near 10 6.7%
6 Wildland, woods 8 5.3%
7 Operator/passenger area of transportation equip. 7 4.7%
8 Outside area, other 7 4.7%
9 Exterior balcony, unenclosed porch 6 4.0%
10 Exterior stairway, ramp, or fire escape 4 2.7%
11 All other areas 36 24.0%
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 Ansonia mix.

#Heat sourceCountShare 
1 Undetermined 38 25.3%
2 Radiated, conducted heat from operating equipment 28 18.7%
3 Hot ember or ash 20 13.3%
4 Arcing 18 12.0%
5 Cigarette lighter 7 4.7%
6 Heat from powered equipment, other 5 3.3%
7 Spark, ember or flame from operating equipment 4 2.7%
8 Heat, spark from friction 4 2.7%
9 Heat from other open flame or smoking materials 4 2.7%
10 Candle 4 2.7%
11 All other sources 18 12.0%
04 The biggest fires

8 fires · $1.0M in losses

Largest single-incident property losses reported by Ansonia departments in 2025. These 8 fires alone account for 94% of the city's annual total.

# Property loss Type Severity Status
1 $400,000 Building fires Major Investigated
2 $150,000 Building fires Significant Investigated
3 $150,000 Building fires Significant Investigated
4 $75,000 Building fires Significant Investigated
5 $75,000 Building fires Significant Investigated
6 $70,000 Passenger vehicle fire Significant Investigated
7 $50,000 Building fires Significant Investigated
8 $45,000 Road freight or transport vehicle fire Significant Investigated
05 How Ansonia compares

Ansonia vs Connecticut vs the nation

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

15.72
Incidents per 1,000 residents
Ansonia
15.72
CT avg
16.92
US avg
7.48
1.48
Building fires per 1,000 residents
Ansonia
1.48
CT avg
1.15
US avg
0.85
0
Civilian fire deaths per million
Ansonia
0
CT avg
6.5
US avg
5.9
5b Who gets hurt

Casualty demographics in Ansonia

24 fire-related casualties recorded in NFIRS Module 11 across the 2021–2025 window. Age, gender, and severity are coarse-binned — no individual identification possible.

AgeCount 
0-9 0
10-19 0
20-29 1
30-39 11
40-49 2
50-59 4
60-69 2
70-79 2
80+ 0
Civilian vs firefighter
Civilian 14 FF 10
Gender
M 18 F 6 Unk 0
Severity (1=minor → 5=fatal)
9
1
10
2
4
3
1
4
0
5
5c Wildfires nearby

Wildfires within 50 mi of Ansonia

Top 25 wildfires (1992+) in the FPA-FOD ignitions database, scaled by acres. 14,652 acres burned in this 50-mile radius. Each dot is a fire — bigger dots burned more land.

50 mi radius
YearCauseAcresDistance 
1995 Arson/incendiarism 5,050 33.4 mi
2008 Missing data/not specified/undetermined 1,300 29.8 mi
1995 Equipment and vehicle use 1,000 35.9 mi
2012 Arson/incendiarism 992 34.1 mi
1999 Smoking 700 48.7 mi
2001 Smoking 550 35.1 mi
2012 Smoking 481 49.4 mi
1999 Missing data/not specified/undetermined 468 48.7 mi
1999 Recreation and ceremony 410 49.2 mi
2016 Natural 384 33.3 mi
2013 Recreation and ceremony 363 49.6 mi
1997 Missing data/not specified/undetermined 361 33.4 mi
5d Top ZIPs

Where in Ansonia 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 06401 1,601
2 06418 7
3 06702 6
4 06491 1
5e Peer cities

Cities similar to Ansonia

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

06 First responders

Who responds in Ansonia?

1 departments report to NFIRS for incidents in Ansonia.

ANSONIA FIRE DEPT
253 Main ST
FDID 06010Volunteer
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.