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ZIP-level NFIRS data

Fires in ZIP 48421

ZIP 48421 recorded 60 fire and hazmat incidents in 2025, 264 across 2021–2025. Primary county: Lapeer County, MI.

ZIP 48421 FIPS 26087 ZIP-level
Total incidents (2025)
60
264 across 5 years
Building fires
15
3 wildland
Wildfire risk
17
FEMA NRI · Very Low
Active fires
0
in Lapeer County
01 Five-year trend

Year over year in ZIP 48421

264 incidents from 2021 through 2025 inside this ZIP.

YearIncidents 
2021 48
2022 61
2023 57
2024 38
2025 60
02 Seasonality

When do fires happen in ZIP 48421?

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

Jan 22
Feb 8
Mar 23
Apr 21
May 17
Jun 27
Jul 30
Aug 36
Sep 14
Oct 12
Nov 37
Dec 17
03 Top incident types

What kinds of calls lead in ZIP 48421?

Top 5 NFIRS incident types for ZIP 48421 across 2021–2025.

#Incident typeCountShare 
1 Power line down 72 27.3%
2 Building fires 40 15.2%
3 Authorized controlled burning 17 6.4%
4 Hazardous condition, other 13 4.9%
5 Electrical wiring/equipment problem, other 13 4.9%
04 Cause of ignition

What sparks fires in ZIP 48421?

For the 15 building fires reported here in 2025, here's how investigators classified ignition cause.

Unintentional
54%
41
Cause undetermined
9%
7
Intentional / arson
5%
4
Equipment / heat source failure
3%
2
Under investigation
7%
5
Act of nature (lightning)
22%
0
05 Where fires start

Where in the building fires start

NFIRS Area of Origin for ZIP 48421 fires across 2021–2025.

#Area of originCountShare 
1 Undetermined 25 32.9%
2 Outside area, other 8 10.5%
3 Open area - outside; included are farmland, field 8 10.5%
4 Cooking area, kitchen 4 5.3%
5 Exterior, exposed surface 4 5.3%
6 Wall surface: exterior 3 3.9%
7 Wildland, woods 3 3.9%
8 Duct: hvac, cable, exhaust, heating, or AC 2 2.6%
9 All other areas 19 25.0%
06 What ignited it

The leading heat sources here

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

#Heat sourceCountShare 
1 Undetermined 37 48.7%
2 Radiated heat from another fire 12 15.8%
3 Arcing 9 11.8%
4 Heat source: other 3 3.9%
5 Spark, ember or flame from operating equipment 3 3.9%
6 Flying brand, ember, spark 3 3.9%
7 Radiated, conducted heat from operating equipment 2 2.6%
8 Heat from direct flame, convection currents 2 2.6%
9 All other sources 5 6.6%
07 The biggest fires

8 fires · $1.0M in losses

Largest single-incident losses in ZIP 48421 across 2021–2025. These 8 fires alone account for 226% of the ZIP's 2025 reported total.

#Property lossTypeYearSeverity
1 $220,000 Building fires 2025 Significant
2 $218,500 Building fires 2025 Significant
3 $150,000 Building fires 2023 Significant
4 $110,000 Building fires 2022 Significant
5 $100,000 Building fires 2021 Significant
6 $85,000 Mobile property (vehicle) fire, other 2022 Significant
7 $80,000 Road freight or transport vehicle fire 2022 Significant
8 $75,000 Building fires 2022 Significant
08 Cities in this ZIP

Most active cities in ZIP 48421

Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 48421.

#City5-yr incidents 
1 Columbiaville 234
11 Current conditions

Right now in 48421

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 — 264 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.