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ZIP-level NFIRS data

Fires in ZIP 02141

ZIP 02141 recorded 192 fire and hazmat incidents in 2025, 939 across 2021–2025. Primary county: Middlesex County, MA. FEMA NRI rates wildfire risk here as High.

ZIP 02141 FIPS 25017 ZIP-level
Total incidents (2025)
192
939 across 5 years
Building fires
6
4 wildland
Wildfire risk
73
FEMA NRI · High
Active fires
0
in Middlesex County
01 Five-year trend

Year over year in ZIP 02141

939 incidents from 2021 through 2025 inside this ZIP.

YearIncidents 
2021 190
2022 176
2023 177
2024 204
2025 192
02 Seasonality

When do fires happen in ZIP 02141?

Nov peaks. Feb dips. Aggregated across all 5 years inside this ZIP.

Jan 79
Feb 55
Mar 74
Apr 73
May 74
Jun 82
Jul 89
Aug 74
Sep 82
Oct 88
Nov 94
Dec 75
03 Top incident types

What kinds of calls lead in ZIP 02141?

Top 5 NFIRS incident types for ZIP 02141 across 2021–2025.

#Incident typeCountShare 
1 Cooking fire, confined to container 314 33.4%
2 Electrical wiring/equipment problem, other 92 9.8%
3 Gas leak (natural gas or LPG) 75 8.0%
4 Biological hazard, confirmed or suspected 73 7.8%
5 Carbon monoxide incident 63 6.7%
04 Cause of ignition

What sparks fires in ZIP 02141?

For the 6 building fires reported here in 2025, here's how investigators classified ignition cause.

Unintentional
75%
42
Cause undetermined
14%
8
Intentional / arson
2%
1
Equipment / heat source failure
5%
3
Under investigation
4%
2
Act of nature (lightning)
0%
0
05 Where fires start

Where in the building fires start

NFIRS Area of Origin for ZIP 02141 fires across 2021–2025.

#Area of originCountShare 
1 Cooking area, kitchen 14 25.0%
2 Outside area, other 7 12.5%
3 Common room, den, family room, living room, lounge 4 7.1%
4 Engine area, running gear, wheel area 4 7.1%
5 Laundry area, wash house (laundry) 3 5.4%
6 Construction/renovation area 3 5.4%
7 Chute/container - trash, rubbish, waste 2 3.6%
8 Ceiling & floor assembly, crawl space b/t stories 2 3.6%
9 All other areas 17 30.4%
06 What ignited it

The leading heat sources here

NFIRS HEAT_SOURC code — the physical thing that started the fire.

#Heat sourceCountShare 
1 Undetermined 21 37.5%
2 Heat from powered equipment, other 12 21.4%
3 Cigarette 6 10.7%
4 Heat from direct flame, convection currents 4 7.1%
5 Arcing 3 5.4%
6 Heat source: other 2 3.6%
7 Candle 2 3.6%
8 Radiated, conducted heat from operating equipment 1 1.8%
9 All other sources 5 8.9%
07 The biggest fires

3 fires · $580K in losses

Largest single-incident losses in ZIP 02141 across 2021–2025. These 3 fires alone account for 0% of the ZIP's 2025 reported total.

#Property lossTypeYearSeverity
1 $500,000 Building fires 2021 Major
2 $80,000 Building fires 2022 Significant
3 $30 Trash or rubbish fire, contained 2021 Significant
08 Cities in this ZIP

Most active cities in ZIP 02141

Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 02141.

#City5-yr incidents 
1 Cambridge 922
2 Somerville 16
3 Malden 1
11 Current conditions

Right now in 02141

The figures above are historical. For today's air quality, fire-weather warnings, and active fires, go to the official sources.

About ZIP-level data

NFIRS reports each fire incident with a 5-digit address ZIP. We aggregate those rows directly to produce ZIP-level totals — 939 incidents in this ZIP across 2021–2025. Building-fire breakdowns (Area of Origin, Heat Source, ignition cause) only count fires investigators classified beyond the basic incident report. Because NFIRS reporting is voluntary, totals are a strong indicator rather than a complete census.