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ZIP-level NFIRS data

Fires in ZIP 46403

ZIP 46403 recorded 113 fire and hazmat incidents in 2025, 709 across 2021–2025. Primary county: Lake County, IN. FEMA NRI rates wildfire risk here as High.

ZIP 46403 FIPS 18089 ZIP-level 2 counties
Total incidents (2025)
113
709 across 5 years
Building fires
3
7 wildland
Wildfire risk
66
FEMA NRI · High
Active fires
0
in Lake County
01 Five-year trend

Year over year in ZIP 46403

709 incidents from 2021 through 2025 inside this ZIP.

YearIncidents 
2021 172
2022 136
2023 143
2024 145
2025 113
02 Seasonality

When do fires happen in ZIP 46403?

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

Jan 39
Feb 45
Mar 59
Apr 66
May 63
Jun 65
Jul 104
Aug 70
Sep 59
Oct 45
Nov 47
Dec 47
03 Top incident types

What kinds of calls lead in ZIP 46403?

Top 5 NFIRS incident types for ZIP 46403 across 2021–2025.

#Incident typeCountShare 
1 Carbon monoxide incident 143 20.2%
2 Gas leak (natural gas or LPG) 126 17.8%
3 Electrical wiring/equipment problem, other 46 6.5%
4 Outside rubbish fire, other 43 6.1%
5 Cooking fire, confined to container 42 5.9%
04 Cause of ignition

What sparks fires in ZIP 46403?

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

Unintentional
34%
32
Cause undetermined
19%
18
Intentional / arson
14%
13
Equipment / heat source failure
3%
3
Under investigation
28%
26
Act of nature (lightning)
2%
1
05 Where fires start

Where in the building fires start

NFIRS Area of Origin for ZIP 46403 fires across 2021–2025.

#Area of originCountShare 
1 Undetermined 44 47.3%
2 Engine area, running gear, wheel area 9 9.7%
3 Cooking area, kitchen 5 5.4%
4 Other 3 3.2%
5 Vehicle area, other 3 3.2%
6 Multiple areas 3 3.2%
7 Common room, den, family room, living room, lounge 2 2.2%
8 Structural area, other 2 2.2%
9 All other areas 22 23.7%
06 What ignited it

The leading heat sources here

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

#Heat sourceCountShare 
1 Undetermined 55 59.1%
2 Heat source: other 17 18.3%
3 Heat from powered equipment, other 4 4.3%
4 Arcing 3 3.2%
5 Candle 3 3.2%
6 Multiple heat sources including multiple ignitions 3 3.2%
7 Spark, ember or flame from operating equipment 1 1.1%
8 Radiated, conducted heat from operating equipment 1 1.1%
9 All other sources 6 6.5%
07 The biggest fires

8 fires · $309K in losses

Largest single-incident losses in ZIP 46403 across 2021–2025. These 8 fires alone account for 263% of the ZIP's 2025 reported total.

#Property lossTypeYearSeverity
1 $50,000 Building fires 2021 Significant
2 $40,000 Passenger vehicle fire 2021 Significant
3 $40,000 Building fires 2022 Significant
4 $40,000 Building fires 2025 Significant
5 $40,000 Special outside fire, other 2025 Significant
6 $35,000 Passenger vehicle fire 2025 Significant
7 $34,300 Building fires 2022 Significant
8 $30,000 Building fires 2022 Significant
08 Cities in this ZIP

Most active cities in ZIP 46403

Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 46403.

#City5-yr incidents 
1 Gary 707
10 Also served by

ZIP 46403 crosses 2 counties

Some ZIPs span multiple counties. The primary above is the largest by population weight; secondary counties are below.

CountyStateWeight 
Porter County IN 1.00 FIPS 18127
11 Current conditions

Right now in 46403

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 — 709 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.