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2025 Annual Fire Report

Fires in Calimesa, California

In 2025, fire departments serving Calimesa responded to 67 fire and hazmat incidents — from cooking fires to gas leaks to a single $75K building blaze. Here's the full picture.

Updated Sep 27, 2026 Grade A Peak yr 2021 Riverside County 10,366 residents 0 reporting departments 332 5-yr
Total incidents
67
+28.8% vs 2024
Building fires
2
Residential 50% Other 50%
Property loss
$233K
$194K structure · $39K contents
Deaths & injuries
0 / 0
0 civilian deaths · 0 civ injuries · 0 firefighter injuries
01 The mix

What kinds of fires happen here?

Outside rubbish fire, other lead by count. Building fires lead by dollars. Together the top five categories make up about 54% of all calls.

67
Total Incidents
Outside rubbish fire, other 12 17.9%
Passenger vehicle fire 8 11.9%
Power line down 6 9.0%
Outside rubbish, trash or waste fire 5 7.5%
Gas leak (natural gas or LPG) 5 7.5%
All other categories 31 46.3%
02 Seasonality

When do fires happen?

Jun peaks. Oct dips. Watch for the typical fall climb starting in October.

Jan 6
Feb 7
Mar 9
Apr 4
May 4
Jun 12
Jul 4
Aug 8
Sep 5
Oct 2
Nov 4
Dec 2
Fewer
More
2b Five-year trend

Year over year in Calimesa

332 incidents 2021–2025. Peak year was 2021. $1.1M cumulative property loss.

YearIncidentsYoY 
2021 78 —
2022 61 -21.8%
2023 74 +21.3%
2024 52 -29.7%
2025 67 +28.8%
03 Cause of ignition

What sparks building fires?

For the 2 building fires Calimesa departments responded to in 2025, here's how they were classified once investigators were finished.

Unintentional
29%
5
Cause undetermined
24%
4
Intentional / arson
24%
4
Equipment / heat source failure
12%
2
Under investigation
12%
2
Act of nature (lightning)
-1%
0
3b Where fires start

Where do fires start in Calimesa?

NFIRS Area of Origin (AREA_ORIG) for the 88 building fires investigators classified across 2021–2025. The room or location where ignition occurred — kitchens, bedrooms, exterior, vehicle areas — tells you where to focus prevention.

#Area of originCountShare 
1 Engine area, running gear, wheel area 29 33.0%
2 Outside area, other 13 14.8%
3 Undetermined 12 13.6%
4 Vehicle area, other 6 6.8%
5 Open area - outside; included are farmland, field 4 4.5%
6 Other 3 3.4%
7 Bathroom, checkroom, lavatory, locker room 3 3.4%
8 Operator/passenger area of transportation equip. 3 3.4%
9 Cooking area, kitchen 2 2.3%
10 Bedroom - < 5 persons; included are jail or prison 1 1.1%
11 All other areas 12 13.6%
3c What ignited it

What actually ignited the fire?

NFIRS Heat Source (HEAT_SOURC) — the physical thing that started it. Spark or ember from operating equipment, an open flame, smoking materials, or hot embers from a fireplace are the leading culprits nationwide. Here's the Calimesa mix.

#Heat sourceCountShare 
1 Undetermined 29 33.0%
2 Arcing 14 15.9%
3 Heat source: other 11 12.5%
4 Heat from powered equipment, other 7 8.0%
5 Spark, ember or flame from operating equipment 7 8.0%
6 Match 4 4.5%
7 Heat, spark from friction 3 3.4%
8 Radiated, conducted heat from operating equipment 1 1.1%
9 Hot or smoldering object, other 1 1.1%
10 Hot ember or ash 1 1.1%
11 All other sources 10 11.4%
04 The biggest fires

8 fires · $189K in losses

Largest single-incident property losses reported by Calimesa departments in 2025. These 8 fires alone account for 97% of the city's annual total.

# Property loss Type Severity Status
1 $75,000 Fire in motor home, camper, recreational vehicle Significant Investigated
2 $30,000 Passenger vehicle fire Significant Investigated
3 $20,000 Passenger vehicle fire Significant Investigated
4 $20,000 Building fires Significant Investigated
5 $20,000 Passenger vehicle fire Significant Investigated
6 $11,000 Building fires Significant Investigated
7 $8,000 Passenger vehicle fire Significant Investigated
8 $5,000 Passenger vehicle fire Significant Investigated
05 How Calimesa compares

Calimesa vs California vs the nation

Per-capita rates let us compare apples to apples. Calimesa sits below the national average for incidents per resident.

6.46
Incidents per 1,000 residents
Calimesa
6.46
CA avg
5.32
US avg
7.48
0.19
Building fires per 1,000 residents
Calimesa
0.19
CA avg
0.32
US avg
0.85
0
Civilian fire deaths per million
Calimesa
0
CA avg
2.9
US avg
5.9
5c Wildfires nearby

Wildfires within 50 mi of Calimesa

Top 25 wildfires (1992+) in the FPA-FOD ignitions database, scaled by acres. 854,007 acres burned in this 50-mile radius. Each dot is a fire — bigger dots burned more land.

50 mi radius
YearCauseAcresDistance 
2003 Arson/incendiarism 91,281 19.3 mi
1999 Missing data/not specified/undetermined 65,000 19.9 mi
2006 Natural 61,700 32.2 mi
2003 Arson/incendiarism 59,788 27.5 mi
2015 Missing data/not specified/undetermined 51,000 14.6 mi
2006 Arson/incendiarism 40,200 17.6 mi
2002 Arson/incendiarism 37,240 45.2 mi
2016 Missing data/not specified/undetermined 36,274 30.1 mi
2020 Equipment and vehicle use 33,424 5.2 mi
2008 Missing data/not specified/undetermined 30,305 40.0 mi
2007 Missing data/not specified/undetermined 28,476 38.9 mi
1998 Missing data/not specified/undetermined 28,164 12.1 mi
5d Top ZIPs

Where in Calimesa do fires concentrate?

Top 5 ZIP codes by NFIRS incident count across 2021–2025. Each ZIP has its own fire profile — dive in for neighborhood-level context.

#ZIP5-yr incidents 
1 92320 268
2 92223 33
3 92373 21
4 92555 7
5 92399 3
5e Peer cities

Cities similar to Calimesa

Six California cities with population within ±25% of Calimesa. Useful comparison targets — same state, similar size, different fire profile.

07 Stay prepared

Before the next Red Flag day.

A 30-minute weekend can cut your home's exposure substantially. These four checklists are a good starting point.

About this data

Numbers reflect incidents reported by participating fire departments to the National Fire Incident Reporting System (NFIRS) Public Data Release for calendar year 2025. NFIRS is voluntary — about 23,000 of roughly 30,000 US fire departments report — so totals are a strong indicator, not a complete census. Per-capita comparisons use 2023 ACS population estimates. Wildland fire data complements NFIRS with NIFC and USFS perimeters. Active-fire counts come from a dated NIFC snapshot, not a live feed.