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ZIP-level NFIRS data

Fires in ZIP 40023

ZIP 40023 recorded 27 fire and hazmat incidents in 2025, 35 across 2021–2025. Primary county: Jefferson County, KY. FEMA NRI rates wildfire risk here as Moderate.

ZIP 40023 FIPS 21111 ZIP-level 2 counties
Total incidents (2025)
27
35 across 5 years
Building fires
5
0 wildland
Wildfire risk
56
FEMA NRI · Moderate
Active fires
0
in Jefferson County
01 Five-year trend

Year over year in ZIP 40023

35 incidents from 2021 through 2025 inside this ZIP.

YearIncidents 
2021 7
2022 0
2023 0
2024 1
2025 27
02 Seasonality

When do fires happen in ZIP 40023?

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

Jan 4
Feb 4
Mar 4
Apr 0
May 3
Jun 3
Jul 5
Aug 3
Sep 1
Oct 4
Nov 1
Dec 3
03 Top incident types

What kinds of calls lead in ZIP 40023?

Top 5 NFIRS incident types for ZIP 40023 across 2021–2025.

#Incident typeCountShare 
1 Passenger vehicle fire 7 20.0%
2 Building fires 5 14.3%
3 Gas leak (natural gas or LPG) 4 11.4%
4 Authorized controlled burning 4 11.4%
5 Vehicle accident, general cleanup 3 8.6%
04 Cause of ignition

What sparks fires in ZIP 40023?

For the 5 building fires reported here in 2025, here's how investigators classified ignition cause.

Unintentional
55%
6
Cause undetermined
36%
4
Intentional / arson
0%
0
Equipment / heat source failure
9%
1
Under investigation
0%
0
Act of nature (lightning)
0%
0
05 Where fires start

Where in the building fires start

NFIRS Area of Origin for ZIP 40023 fires across 2021–2025.

#Area of originCountShare 
1 Engine area, running gear, wheel area 3 27.3%
2 Undetermined 3 27.3%
3 Bedroom - < 5 persons; included are jail or prison 1 9.1%
4 Ceiling & floor assembly, crawl space b/t stories 1 9.1%
5 Wall surface: exterior 1 9.1%
6 Cargo/trunk area - all vehicles 1 9.1%
7 Railroad right of way: on or near 1 9.1%
06 What ignited it

The leading heat sources here

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

#Heat sourceCountShare 
1 Undetermined 8 72.7%
2 Arcing 1 9.1%
3 Heat, spark from friction 1 9.1%
4 Lightning 1 9.1%
07 The biggest fires

8 fires · $432K in losses

Largest single-incident losses in ZIP 40023 across 2021–2025. These 8 fires alone account for 107% of the ZIP's 2025 reported total.

#Property lossTypeYearSeverity
1 $175,000 Building fires 2025 Significant
2 $150,000 Building fires 2025 Significant
3 $40,000 Passenger vehicle fire 2025 Significant
4 $30,000 Passenger vehicle fire 2021 Significant
5 $20,000 Passenger vehicle fire 2025 Significant
6 $10,000 Building fires 2025 Significant
7 $5,000 Passenger vehicle fire 2025 Significant
8 $2,000 Building fires 2025 Significant
08 Cities in this ZIP

Most active cities in ZIP 40023

Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 40023.

#City5-yr incidents 
1 Louisville 16
10 Also served by

ZIP 40023 crosses 2 counties

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

CountyStateWeight 
Spencer County KY 1.00 FIPS 21215
11 Current conditions

Right now in 40023

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 — 35 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.