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ZIP-level NFIRS data

Fires in ZIP 84120

ZIP 84120 recorded 196 fire and hazmat incidents in 2025, 869 across 2021–2025. Primary county: Salt Lake County, UT. FEMA NRI rates wildfire risk here as Very High.

ZIP 84120 FIPS 49035 ZIP-level
Total incidents (2025)
196
869 across 5 years
Building fires
20
20 wildland
Wildfire risk
98
FEMA NRI · Very High
Active fires
0
in Salt Lake County
01 Five-year trend

Year over year in ZIP 84120

869 incidents from 2021 through 2025 inside this ZIP.

YearIncidents 
2021 168
2022 183
2023 130
2024 192
2025 196
02 Seasonality

When do fires happen in ZIP 84120?

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

Jan 46
Feb 41
Mar 64
Apr 50
May 68
Jun 88
Jul 141
Aug 92
Sep 77
Oct 69
Nov 77
Dec 56
03 Top incident types

What kinds of calls lead in ZIP 84120?

Top 5 NFIRS incident types for ZIP 84120 across 2021–2025.

#Incident typeCountShare 
1 Building fires 163 18.8%
2 Gas leak (natural gas or LPG) 106 12.2%
3 Passenger vehicle fire 65 7.5%
4 Power line down 47 5.4%
5 Carbon monoxide incident 45 5.2%
04 Cause of ignition

What sparks fires in ZIP 84120?

For the 20 building fires reported here in 2025, here's how investigators classified ignition cause.

Unintentional
50%
152
Cause undetermined
17%
51
Intentional / arson
6%
17
Equipment / heat source failure
13%
38
Under investigation
3%
8
Act of nature (lightning)
11%
3
05 Where fires start

Where in the building fires start

NFIRS Area of Origin for ZIP 84120 fires across 2021–2025.

#Area of originCountShare 
1 Engine area, running gear, wheel area 55 18.2%
2 Outside area, other 41 13.5%
3 Undetermined 38 12.5%
4 Cooking area, kitchen 25 8.3%
5 Open area - outside; included are farmland, field 19 6.3%
6 Vehicle storage area; garage, carport 18 5.9%
7 Courtyard, patio, porch, terrace 12 4.0%
8 Highway, parking lot, street: on or near 9 3.0%
9 All other areas 86 28.4%
06 What ignited it

The leading heat sources here

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

#Heat sourceCountShare 
1 Undetermined 81 26.7%
2 Arcing 42 13.9%
3 Heat from powered equipment, other 25 8.3%
4 Radiated, conducted heat from operating equipment 25 8.3%
5 Spark, ember or flame from operating equipment 15 5.0%
6 Fireworks 15 5.0%
7 Heat source: other 12 4.0%
8 Heat spread from another fire, other 11 3.6%
9 All other sources 77 25.4%
07 The biggest fires

8 fires · $2.5M in losses

Largest single-incident losses in ZIP 84120 across 2021–2025. These 8 fires alone account for 214% of the ZIP's 2025 reported total.

#Property lossTypeYearSeverity
1 $400,000 Building fires 2022 Major
2 $400,000 Building fires 2024 Major
3 $350,000 Building fires 2024 Major
4 $300,000 Building fires 2025 Major
5 $300,000 Building fires 2025 Major
6 $250,000 Building fires 2022 Major
7 $250,000 Building fires 2023 Major
8 $250,000 Building fires 2024 Major
08 Cities in this ZIP

Most active cities in ZIP 84120

Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 84120.

#City5-yr incidents 
1 West Valley City 843
2 Salt Lake City 5
3 Kearns 1
11 Current conditions

Right now in 84120

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 — 869 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.