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ZIP-level NFIRS data

Fires in ZIP 91741

ZIP 91741 recorded 62 fire and hazmat incidents in 2025, 242 across 2021–2025. Primary county: Los Angeles County, CA. FEMA NRI rates wildfire risk here as Very High.

ZIP 91741 FIPS 06037 ZIP-level
Total incidents (2025)
62
242 across 5 years
Building fires
7
0 wildland
Wildfire risk
100
FEMA NRI · Very High
Active fires
0
in Los Angeles County
01 Five-year trend

Year over year in ZIP 91741

242 incidents from 2021 through 2025 inside this ZIP.

YearIncidents 
2021 37
2022 52
2023 45
2024 46
2025 62
02 Seasonality

When do fires happen in ZIP 91741?

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

Jan 40
Feb 14
Mar 23
Apr 14
May 19
Jun 15
Jul 15
Aug 23
Sep 10
Oct 23
Nov 19
Dec 27
03 Top incident types

What kinds of calls lead in ZIP 91741?

Top 5 NFIRS incident types for ZIP 91741 across 2021–2025.

#Incident typeCountShare 
1 Power line down 53 21.9%
2 Electrical wiring/equipment problem, other 25 10.3%
3 Building fires 23 9.5%
4 Gas leak (natural gas or LPG) 19 7.9%
5 Arcing, shorted electrical equipment 17 7.0%
04 Cause of ignition

What sparks fires in ZIP 91741?

For the 7 building fires reported here in 2025, here's how investigators classified ignition cause.

Unintentional
53%
28
Cause undetermined
9%
5
Intentional / arson
9%
5
Equipment / heat source failure
23%
12
Under investigation
4%
2
Act of nature (lightning)
2%
0
05 Where fires start

Where in the building fires start

NFIRS Area of Origin for ZIP 91741 fires across 2021–2025.

#Area of originCountShare 
1 Cooking area, kitchen 8 15.1%
2 Vehicle storage area; garage, carport 8 15.1%
3 Engine area, running gear, wheel area 6 11.3%
4 Outside area, other 4 7.5%
5 Equipment or service area, other 3 5.7%
6 Undetermined 3 5.7%
7 Other 2 3.8%
8 Laundry area, wash house (laundry) 2 3.8%
9 All other areas 17 32.1%
06 What ignited it

The leading heat sources here

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

#Heat sourceCountShare 
1 Arcing 17 32.1%
2 Heat from powered equipment, other 8 15.1%
3 Heat source: other 7 13.2%
4 Radiated, conducted heat from operating equipment 5 9.4%
5 Heat from other open flame or smoking materials 5 9.4%
6 Hot or smoldering object, other 3 5.7%
7 Undetermined 3 5.7%
8 Spark, ember or flame from operating equipment 1 1.9%
9 All other sources 4 7.5%
07 The biggest fires

8 fires · $674K in losses

Largest single-incident losses in ZIP 91741 across 2021–2025. These 8 fires alone account for 338% of the ZIP's 2025 reported total.

#Property lossTypeYearSeverity
1 $200,000 Building fires 2022 Significant
2 $100,000 Building fires 2024 Significant
3 $100,000 Building fires 2024 Significant
4 $79,000 Building fires 2022 Significant
5 $50,000 Building fires 2022 Significant
6 $50,000 Building fires 2025 Significant
7 $50,000 Building fires 2025 Significant
8 $45,000 Mobile property (vehicle) fire, other 2022 Significant
08 Cities in this ZIP

Most active cities in ZIP 91741

Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 91741.

#City5-yr incidents 
1 Glendora 241
2 Claremont 1
11 Current conditions

Right now in 91741

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 — 242 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.