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2025 Annual Fire Report

Fires in Nantucket, Massachusetts

In 2025, fire departments serving Nantucket responded to 255 fire and hazmat incidents — from cooking fires to gas leaks to a single $50K building blaze. Here's the full picture.

Updated Sep 27, 2026 Grade B- Peak yr 2025 Nantucket County 14,065 residents 0 reporting departments 900 5-yr
Total incidents
255
+32.8% vs 2024
Building fires
9
Residential 67% Other 33%
Property loss
$70K
$70K structure · $0 contents
Deaths & injuries
0 / 0
0 civilian deaths · 0 civ injuries · 0 firefighter injuries
01 The mix

What kinds of fires happen here?

Gas leak (natural gas or LPG) lead by count. Building fires lead by dollars. Together the top five categories make up about 52% of all calls.

255
Total Incidents
Gas leak (natural gas or LPG) 48 18.8%
Carbon monoxide incident 44 17.3%
Unauthorized burning 18 7.1%
Passenger vehicle fire 11 4.3%
Brush, or brush and grass mixture fire 11 4.3%
All other categories 123 48.2%
02 Seasonality

When do fires happen?

Jul peaks. Jan dips. Watch for the typical fall climb starting in October.

Jan 13
Feb 16
Mar 20
Apr 21
May 23
Jun 28
Jul 31
Aug 30
Sep 23
Oct 17
Nov 15
Dec 18
Fewer
More
2b Five-year trend

Year over year in Nantucket

900 incidents 2021–2025. Peak year was 2025. $11.6M cumulative property loss. 1 civilian deaths.

YearIncidentsYoY 
2021 164 —
2022 125 -23.8%
2023 164 +31.2%
2024 192 +17.1%
2025 255 +32.8%
03 Cause of ignition

What sparks building fires?

For the 9 building fires Nantucket departments responded to in 2025, here's how they were classified once investigators were finished.

Unintentional
44%
27
Cause undetermined
16%
10
Intentional / arson
8%
5
Equipment / heat source failure
13%
8
Under investigation
19%
12
Act of nature (lightning)
0%
0
3b Where fires start

Where do fires start in Nantucket?

NFIRS Area of Origin (AREA_ORIG) for the 158 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 24 15.2%
2 Outside area, other 20 12.7%
3 Undetermined 20 12.7%
4 Cooking area, kitchen 18 11.4%
5 Open area - outside; included are farmland, field 7 4.4%
6 Wildland, woods 6 3.8%
7 Laundry area, wash house (laundry) 5 3.2%
8 Vehicle area, other 5 3.2%
9 Common room, den, family room, living room, lounge 4 2.5%
10 Structural area, other 4 2.5%
11 All other areas 45 28.5%
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 Nantucket mix.

#Heat sourceCountShare 
1 Undetermined 64 40.5%
2 Heat from powered equipment, other 24 15.2%
3 Hot or smoldering object, other 14 8.9%
4 Hot ember or ash 10 6.3%
5 Radiated, conducted heat from operating equipment 9 5.7%
6 Arcing 9 5.7%
7 Heat spread from another fire, other 5 3.2%
8 Heat source: other 3 1.9%
9 Spark, ember or flame from operating equipment 3 1.9%
10 Chemical reaction 3 1.9%
11 All other sources 14 8.9%
04 The biggest fires

2 fires · $70K in losses

Largest single-incident property losses reported by Nantucket departments in 2025. These 2 fires alone account for 100% of the city's annual total.

# Property loss Type Severity Status
1 $50,000 Passenger vehicle fire Significant Investigated
2 $20,000 Building fires Significant Investigated
05 How Nantucket compares

Nantucket vs Massachusetts vs the nation

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

18.13
Incidents per 1,000 residents
Nantucket
18.13
MA avg
8.75
US avg
7.48
0.64
Building fires per 1,000 residents
Nantucket
0.64
MA avg
0.57
US avg
0.85
0
Civilian fire deaths per million
Nantucket
0
MA avg
2.8
US avg
5.9
5b Who gets hurt

Casualty demographics in Nantucket

7 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 0
40-49 4
50-59 1
60-69 1
70-79 0
80+ 0
Civilian vs firefighter
Civilian 2 FF 5
Gender
M 6 F 1 Unk 0
Severity (1=minor → 5=fatal)
0
1
1
2
3
3
2
4
1
5
5c Wildfires nearby

Wildfires within 50 mi of Nantucket

Top 9 wildfires (1992+) in the FPA-FOD ignitions database, scaled by acres. 231 acres burned in this 50-mile radius. Each dot is a fire — bigger dots burned more land.

50 mi radius
YearCauseAcresDistance 
2016 Natural 120 38.6 mi
2017 Missing data/not specified/undetermined 29 29.5 mi
2015 Recreation and ceremony 15 35.6 mi
2003 Arson/incendiarism 13 42.4 mi
2015 Recreation and ceremony 13 35.9 mi
2017 Arson/incendiarism 11 31.5 mi
2004 Missing data/not specified/undetermined 10 42.0 mi
2004 Equipment and vehicle use 10 41.4 mi
2015 Recreation and ceremony 10 35.6 mi
5d Top ZIPs

Where in Nantucket 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 02554 900
5e Peer cities

Cities similar to Nantucket

Six Massachusetts cities with population within ±25% of Nantucket. 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.