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ZIP-level NFIRS data

Fires in ZIP 01748

ZIP 01748 recorded 245 fire and hazmat incidents in 2025, 1,172 across 2021–2025. Primary county: Middlesex County, MA. FEMA NRI rates wildfire risk here as High.

ZIP 01748 FIPS 25017 ZIP-level
Total incidents (2025)
245
1,172 across 5 years
Building fires
25
23 wildland
Wildfire risk
73
FEMA NRI · High
Active fires
0
in Middlesex County
01 Five-year trend

Year over year in ZIP 01748

1,172 incidents from 2021 through 2025 inside this ZIP.

YearIncidents 
2021 215
2022 233
2023 249
2024 230
2025 245
02 Seasonality

When do fires happen in ZIP 01748?

Dec peaks. Jun dips. Aggregated across all 5 years inside this ZIP.

Jan 114
Feb 79
Mar 100
Apr 106
May 106
Jun 74
Jul 87
Aug 93
Sep 85
Oct 97
Nov 108
Dec 123
03 Top incident types

What kinds of calls lead in ZIP 01748?

Top 5 NFIRS incident types for ZIP 01748 across 2021–2025.

#Incident typeCountShare 
1 Gas leak (natural gas or LPG) 192 16.4%
2 Power line down 150 12.8%
3 Cooking fire, confined to container 104 8.9%
4 Building fires 96 8.2%
5 Carbon monoxide incident 73 6.2%
04 Cause of ignition

What sparks fires in ZIP 01748?

For the 25 building fires reported here in 2025, here's how investigators classified ignition cause.

Unintentional
42%
84
Cause undetermined
44%
89
Intentional / arson
2%
5
Equipment / heat source failure
8%
17
Under investigation
1%
2
Act of nature (lightning)
3%
3
05 Where fires start

Where in the building fires start

NFIRS Area of Origin for ZIP 01748 fires across 2021–2025.

#Area of originCountShare 
1 Engine area, running gear, wheel area 44 22.0%
2 Outside area, other 23 11.5%
3 Wildland, woods 20 10.0%
4 Undetermined 18 9.0%
5 Highway, parking lot, street: on or near 17 8.5%
6 Open area - outside; included are farmland, field 17 8.5%
7 Cooking area, kitchen 10 5.0%
8 Chute/container - trash, rubbish, waste 6 3.0%
9 All other areas 45 22.5%
06 What ignited it

The leading heat sources here

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

#Heat sourceCountShare 
1 Undetermined 112 56.0%
2 Heat from powered equipment, other 18 9.0%
3 Radiated, conducted heat from operating equipment 11 5.5%
4 Hot ember or ash 11 5.5%
5 Cigarette 8 4.0%
6 Arcing 7 3.5%
7 Hot or smoldering object, other 6 3.0%
8 Chemical reaction 5 2.5%
9 All other sources 22 11.0%
07 The biggest fires

8 fires · $4.9M in losses

Largest single-incident losses in ZIP 01748 across 2021–2025. These 8 fires alone account for 315% of the ZIP's 2025 reported total.

#Property lossTypeYearSeverity
1 $1,000,000 Building fires 2025 Major
2 $900,000 Building fires 2022 Major
3 $881,236 Building fires 2021 Major
4 $800,000 Mobile property (vehicle) fire, other 2021 Major
5 $385,000 Building fires 2022 Major
6 $300,000 Building fires 2022 Major
7 $300,000 Building fires 2025 Major
8 $291,000 Building fires 2023 Major
08 Cities in this ZIP

Most active cities in ZIP 01748

Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 01748.

#City5-yr incidents 
1 Hopkinton 1,172
11 Current conditions

Right now in 01748

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 — 1,172 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.