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ZIP-level NFIRS data

Fires in ZIP 53940

ZIP 53940 recorded 4 fire and hazmat incidents in 2025, 132 across 2021–2025. Primary county: Sauk County, WI.

ZIP 53940 FIPS 55111 ZIP-level
Total incidents (2025)
4
132 across 5 years
Building fires
0
0 wildland
Wildfire risk
27
FEMA NRI · Low
Active fires
0
in Sauk County
01 Five-year trend

Year over year in ZIP 53940

132 incidents from 2021 through 2025 inside this ZIP.

YearIncidents 
2021 38
2022 29
2023 42
2024 19
2025 4
02 Seasonality

When do fires happen in ZIP 53940?

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

Jan 15
Feb 9
Mar 4
Apr 9
May 17
Jun 9
Jul 23
Aug 10
Sep 10
Oct 7
Nov 8
Dec 11
03 Top incident types

What kinds of calls lead in ZIP 53940?

Top 5 NFIRS incident types for ZIP 53940 across 2021–2025.

#Incident typeCountShare 
1 Gas leak (natural gas or LPG) 22 16.7%
2 Building fires 18 13.6%
3 Passenger vehicle fire 17 12.9%
4 Grass fire 9 6.8%
5 Power line down 9 6.8%
04 Cause of ignition

What sparks fires in ZIP 53940?

For the 0 building fires reported here in 2025, here's how investigators classified ignition cause.

Unintentional
67%
41
Cause undetermined
11%
7
Intentional / arson
2%
1
Equipment / heat source failure
11%
7
Under investigation
5%
3
Act of nature (lightning)
4%
2
05 Where fires start

Where in the building fires start

NFIRS Area of Origin for ZIP 53940 fires across 2021–2025.

#Area of originCountShare 
1 Engine area, running gear, wheel area 16 26.2%
2 Cooking area, kitchen 5 8.2%
3 Courtyard, patio, porch, terrace 4 6.6%
4 Open area - outside; included are farmland, field 4 6.6%
5 Wildland, woods 4 6.6%
6 Operator/passenger area of transportation equip. 3 4.9%
7 Highway, parking lot, street: on or near 3 4.9%
8 Chute/container - trash, rubbish, waste 2 3.3%
9 All other areas 20 32.8%
06 What ignited it

The leading heat sources here

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

#Heat sourceCountShare 
1 Undetermined 27 44.3%
2 Hot ember or ash 5 8.2%
3 Fireworks 5 8.2%
4 Radiated, conducted heat from operating equipment 4 6.6%
5 Heat from other open flame or smoking materials 3 4.9%
6 Spark, ember or flame from operating equipment 2 3.3%
7 Arcing 2 3.3%
8 Heat, spark from friction 2 3.3%
9 All other sources 11 18.0%
07 The biggest fires

4 fires · $526K in losses

Largest single-incident losses in ZIP 53940 across 2021–2025. These 4 fires alone account for 0% of the ZIP's 2025 reported total.

#Property lossTypeYearSeverity
1 $210,500 Building fires 2022 Significant
2 $175,000 Building fires 2022 Significant
3 $100,000 Road freight or transport vehicle fire 2024 Significant
4 $40,000 Building fires 2024 Significant
08 Cities in this ZIP

Most active cities in ZIP 53940

Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 53940.

#City5-yr incidents 
1 Lake Delton 120
2 Baraboo 2
3 Wisconsin Dells 2
11 Current conditions

Right now in 53940

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 — 132 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.