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ZIP-level NFIRS data

Fires in ZIP 01536

ZIP 01536 recorded 69 fire and hazmat incidents in 2025, 299 across 2021–2025. Primary county: Worcester County, MA. FEMA NRI rates wildfire risk here as High.

ZIP 01536 FIPS 25027 ZIP-level
Total incidents (2025)
69
299 across 5 years
Building fires
3
5 wildland
Wildfire risk
63
FEMA NRI · High
Active fires
0
in Worcester County
01 Five-year trend

Year over year in ZIP 01536

299 incidents from 2021 through 2025 inside this ZIP.

YearIncidents 
2021 42
2022 45
2023 66
2024 77
2025 69
02 Seasonality

When do fires happen in ZIP 01536?

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

Jan 29
Feb 21
Mar 21
Apr 23
May 26
Jun 22
Jul 22
Aug 18
Sep 30
Oct 36
Nov 34
Dec 17
03 Top incident types

What kinds of calls lead in ZIP 01536?

Top 5 NFIRS incident types for ZIP 01536 across 2021–2025.

#Incident typeCountShare 
1 Gas leak (natural gas or LPG) 48 16.1%
2 Cooking fire, confined to container 32 10.7%
3 Carbon monoxide incident 31 10.4%
4 Unauthorized burning 31 10.4%
5 Building fires 20 6.7%
04 Cause of ignition

What sparks fires in ZIP 01536?

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

Unintentional
64%
47
Cause undetermined
11%
8
Intentional / arson
8%
6
Equipment / heat source failure
11%
8
Under investigation
4%
3
Act of nature (lightning)
2%
1
05 Where fires start

Where in the building fires start

NFIRS Area of Origin for ZIP 01536 fires across 2021–2025.

#Area of originCountShare 
1 Undetermined 13 17.8%
2 Engine area, running gear, wheel area 10 13.7%
3 Outside area, other 10 13.7%
4 Other 7 9.6%
5 Cooking area, kitchen 4 5.5%
6 Equipment or service area, other 4 5.5%
7 Wall assembly 3 4.1%
8 Open area - outside; included are farmland, field 3 4.1%
9 All other areas 19 26.0%
06 What ignited it

The leading heat sources here

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

#Heat sourceCountShare 
1 Undetermined 34 46.6%
2 Heat from powered equipment, other 8 11.0%
3 Radiated, conducted heat from operating equipment 7 9.6%
4 Hot ember or ash 5 6.8%
5 Heat source: other 3 4.1%
6 Spark, ember or flame from operating equipment 3 4.1%
7 Arcing 2 2.7%
8 Hot or smoldering object, other 2 2.7%
9 All other sources 9 12.3%
07 The biggest fires

8 fires · $2.0M in losses

Largest single-incident losses in ZIP 01536 across 2021–2025. These 8 fires alone account for 254% of the ZIP's 2025 reported total.

#Property lossTypeYearSeverity
1 $450,000 Building fires 2022 Major
2 $300,000 Building fires 2024 Major
3 $300,000 Building fires 2025 Major
4 $250,000 Building fires 2022 Major
5 $250,000 Building fires 2025 Major
6 $150,000 Building fires 2023 Significant
7 $150,000 Building fires 2024 Significant
8 $125,000 Passenger vehicle fire 2025 Significant
08 Cities in this ZIP

Most active cities in ZIP 01536

Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 01536.

#City5-yr incidents 
1 Grafton 11
11 Current conditions

Right now in 01536

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 — 299 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.