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ZIP-level NFIRS data

Fires in ZIP 48503

ZIP 48503 recorded 138 fire and hazmat incidents in 2025, 990 across 2021–2025. Primary county: Genesee County, MI.

ZIP 48503 FIPS 26049 ZIP-level
Total incidents (2025)
138
990 across 5 years
Building fires
45
2 wildland
Wildfire risk
26
FEMA NRI · Low
Active fires
0
in Genesee County
01 Five-year trend

Year over year in ZIP 48503

990 incidents from 2021 through 2025 inside this ZIP.

YearIncidents 
2021 246
2022 240
2023 182
2024 184
2025 138
02 Seasonality

When do fires happen in ZIP 48503?

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

Jan 62
Feb 44
Mar 77
Apr 75
May 95
Jun 90
Jul 104
Aug 117
Sep 105
Oct 77
Nov 64
Dec 80
03 Top incident types

What kinds of calls lead in ZIP 48503?

Top 5 NFIRS incident types for ZIP 48503 across 2021–2025.

#Incident typeCountShare 
1 Building fires 314 31.7%
2 Power line down 159 16.1%
3 Unauthorized burning 90 9.1%
4 Passenger vehicle fire 67 6.8%
5 Gas leak (natural gas or LPG) 62 6.3%
04 Cause of ignition

What sparks fires in ZIP 48503?

For the 45 building fires reported here in 2025, here's how investigators classified ignition cause.

Unintentional
26%
132
Cause undetermined
39%
196
Intentional / arson
17%
85
Equipment / heat source failure
3%
16
Under investigation
13%
64
Act of nature (lightning)
2%
5
05 Where fires start

Where in the building fires start

NFIRS Area of Origin for ZIP 48503 fires across 2021–2025.

#Area of originCountShare 
1 Undetermined 155 30.6%
2 Cooking area, kitchen 58 11.4%
3 Engine area, running gear, wheel area 32 6.3%
4 Bedroom - < 5 persons; included are jail or prison 27 5.3%
5 Outside area, other 26 5.1%
6 Common room, den, family room, living room, lounge 23 4.5%
7 Vehicle area, other 17 3.4%
8 Open area - outside; included are farmland, field 15 3.0%
9 All other areas 154 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 407 80.3%
2 Heat from powered equipment, other 18 3.6%
3 Arcing 13 2.6%
4 Spark, ember or flame from operating equipment 9 1.8%
5 Hot or smoldering object, other 9 1.8%
6 Radiated, conducted heat from operating equipment 8 1.6%
7 Cigarette lighter 6 1.2%
8 Heat from direct flame, convection currents 6 1.2%
9 All other sources 31 6.1%
07 The biggest fires

8 fires · $8.9M in losses

Largest single-incident losses in ZIP 48503 across 2021–2025. These 8 fires alone account for 1827% of the ZIP's 2025 reported total.

#Property lossTypeYearSeverity
1 $5,000,000 Building fires 2021 Catastrophic
2 $1,000,000 Building fires 2021 Major
3 $1,000,000 Building fires 2024 Major
4 $500,000 Building fires 2021 Major
5 $500,000 Building fires 2023 Major
6 $400,000 Mobile property (vehicle) fire, other 2023 Major
7 $250,000 Building fires 2022 Major
8 $249,000 Building fires 2023 Significant
08 Cities in this ZIP

Most active cities in ZIP 48503

Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 48503.

#City5-yr incidents 
1 Flint 984
11 Current conditions

Right now in 48503

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 — 990 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.