Home› ZIP› 02453
ZIP-level NFIRS data

Fires in ZIP 02453

ZIP 02453 recorded 35 fire and hazmat incidents in 2025, 1,132 across 2021–2025. Primary county: Middlesex County, MA. FEMA NRI rates wildfire risk here as High.

ZIP 02453 FIPS 25017 ZIP-level
Total incidents (2025)
35
1,132 across 5 years
Building fires
3
1 wildland
Wildfire risk
73
FEMA NRI · High
Active fires
0
in Middlesex County
01 Five-year trend

Year over year in ZIP 02453

1,132 incidents from 2021 through 2025 inside this ZIP.

YearIncidents 
2021 279
2022 299
2023 257
2024 262
2025 35
02 Seasonality

When do fires happen in ZIP 02453?

Oct peaks. Jan dips. Aggregated across all 5 years inside this ZIP.

Jan 82
Feb 85
Mar 88
Apr 87
May 87
Jun 91
Jul 100
Aug 85
Sep 91
Oct 117
Nov 105
Dec 114
03 Top incident types

What kinds of calls lead in ZIP 02453?

Top 5 NFIRS incident types for ZIP 02453 across 2021–2025.

#Incident typeCountShare 
1 Electrical wiring/equipment problem, other 168 14.8%
2 Hazardous condition, other 145 12.8%
3 Power line down 127 11.2%
4 Gas leak (natural gas or LPG) 105 9.3%
5 Carbon monoxide incident 102 9.0%
04 Cause of ignition

What sparks fires in ZIP 02453?

For the 3 building fires reported here in 2025, here's how investigators classified ignition cause.

Unintentional
69%
130
Cause undetermined
14%
27
Intentional / arson
0%
0
Equipment / heat source failure
6%
12
Under investigation
2%
3
Act of nature (lightning)
9%
11
05 Where fires start

Where in the building fires start

NFIRS Area of Origin for ZIP 02453 fires across 2021–2025.

#Area of originCountShare 
1 Outside area, other 61 32.4%
2 Cooking area, kitchen 19 10.1%
3 Undetermined 16 8.5%
4 Wildland, woods 11 5.9%
5 Highway, parking lot, street: on or near 10 5.3%
6 Engine area, running gear, wheel area 9 4.8%
7 Vehicle area, other 6 3.2%
8 Bedroom - < 5 persons; included are jail or prison 5 2.7%
9 All other areas 51 27.1%
06 What ignited it

The leading heat sources here

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

#Heat sourceCountShare 
1 Undetermined 88 46.8%
2 Cigarette 22 11.7%
3 Heat from powered equipment, other 16 8.5%
4 Arcing 12 6.4%
5 Heat from direct flame, convection currents 7 3.7%
6 Heat source: other 6 3.2%
7 Cigarette lighter 6 3.2%
8 Match 5 2.7%
9 All other sources 26 13.8%
07 The biggest fires

8 fires · $1.5M in losses

Largest single-incident losses in ZIP 02453 across 2021–2025. These 8 fires alone account for 15300% of the ZIP's 2025 reported total.

#Property lossTypeYearSeverity
1 $500,000 Building fires 2023 Major
2 $400,000 Building fires 2023 Major
3 $400,000 Building fires 2023 Major
4 $100,000 Passenger vehicle fire 2023 Significant
5 $100,000 Building fires 2023 Significant
6 $10,000 Building fires 2023 Significant
7 $10,000 Building fires 2023 Significant
8 $10,000 Passenger vehicle fire 2023 Significant
08 Cities in this ZIP

Most active cities in ZIP 02453

Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 02453.

#City5-yr incidents 
1 Waltham 1,123
2 Weston 7
3 Newton 2
11 Current conditions

Right now in 02453

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 — 1,132 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.