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2025 County Report

Fires in Somerset County, NJ

In 2025, fire departments serving Somerset County responded to 1,728 fire and hazmat incidents — including a single $750K property loss.

498,801 residents FIPS 34035 85 cities · 29 fire depts
Total incidents
1,728
7,840 across 5 years
Building fires
150
140 wildland
Property loss
$3.6M
$2.9M structure · $642K contents
Casualties
0 / 5
0 civ deaths · 2 civ inj · 3 FF inj
01 The mix

What kinds of fires happen here?

Gas leak (natural gas or LPG) lead by count. Top five categories make up about 58% of all calls.

1,728
Total Incidents
Gas leak (natural gas or LPG) 532 30.8%
Building fires 150 8.7%
Carbon monoxide incident 139 8.0%
Arcing, shorted electrical equipment 95 5.5%
Brush, or brush and grass mixture fire 88 5.1%
All other categories 724 41.9%
02 Seasonality

When do fires happen in Somerset County?

Jul peaks. Nov dips.

Jan 170
Feb 153
Mar 164
Apr 162
May 137
Jun 175
Jul 229
Aug 166
Sep 83
Oct 118
Nov 68
Dec 103
03 Five-year trend

Year over year in Somerset County

7,840 incidents from 2021 through 2025.

YearIncidents 
2021 1,309
2022 1,250
2023 1,149
2024 2,404
2025 1,728
04 Cause of ignition

What sparks building fires?

For the 150 building fires departments responded to in 2025, here's how investigators classified them.

Unintentional
39%
71
Cause undetermined
20%
36
Intentional / arson
3%
6
Equipment / heat source failure
11%
20
Under investigation
20%
37
Act of nature (lightning)
7%
10
05 The biggest fires

10 fires · $2.7M in losses

Largest single-incident property losses in Somerset County during 2025. These 10 fires alone account for 92% of the county's total.

#Property lossCityTypeSeverity
1 $750,000 BRIDGEWATER TWP Building fires Major
2 $500,000 North Plainfield Building fires Major
3 $450,000 North Plainfield Building fires Major
4 $300,000 North Plainfield Building fires Major
5 $250,000 BRIDGEWATER TWP Building fires Major
6 $125,000 North Plainfield Building fires Significant
7 $100,000 BRIDGEWATER TWP Building fires Significant
8 $100,000 NORTH PLAINFIELD Building fires Significant
9 $75,000 BOUND BROOK Road freight or transport vehicle fire Significant
10 $50,000 North Plainfield Building fires Significant
06 How Somerset County compares

Somerset County vs NJ vs the nation

Per-capita rates let us compare apples to apples.

3.46
Incidents per 1,000 residents
Somerset County
3.46
NJ avg
6.57
US avg
7.15
0.3
Building fires per 1,000 residents
Somerset County
0.3
NJ avg
0.58
US avg
0.82
0
Civilian fire deaths per million
Somerset County
0
NJ avg
2.3
US avg
5.8
07 Cities in this county

Largest cities in Somerset County

12 cities mapped to FIPS 34035.

08 First responders

Busiest fire departments in Somerset County

29 departments report from this county.

North Plainfield Fire Dept
North Plainfield
FDID 18140 266 incidents 24 paid 8 vol
North Branch Vol Fire Co
BRANCHBURG
FDID 18051 136 incidents 30 vol
GRIGGSTOWN VOL FIRE CO
—
FDID 18089 128 incidents 15 vol
Liberty Corner Fire Company
Basking Ridge
FDID 18021 122 incidents 30 vol
Country Hills
Bridgewater
FDID 18052 121 incidents 25 vol
09 Historical wildfires

Largest fires recorded in NJ

Top 6 fire perimeters by acres burned (state-scoped fallback while we build out per-county polygons).

#NameYearAgencyAcres
1 NJGSR-FY19-RX-Pool 3b 2019 FWS 83
2 NJWKR-FY19-RX-Kenely Unit D 2019 FWS 4
3 Game Farm 2024 FWS 1
4 NJGSR-FY20-WF-Orange Trail WF 2020 FWS 0
5 NJWKR-FY20-WF-Papakating Creek WF 2020 FWS 0
6 Water Works 2023 FWS 0

About this data

County-level NFIRS aggregates for 2025, plus 5-year totals across 2021–2025. NFIRS is voluntary — about 23,000 of roughly 30,000 US fire departments report — so totals are a strong indicator, not a complete census. Wildfire risk score (0–100) and Expected Annual Loss come from FEMA's National Risk Index. Drought class is the most recent USDM classification (D0 = abnormally dry through D4 = exceptional drought). Historical fire perimeters are sourced from the NIFC InterAgency Fire Perimeter History.