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2025 Annual Fire Report

Fires in Alamo, California

In 2025, fire departments serving Alamo responded to 42 fire and hazmat incidents — from cooking fires to gas leaks to a single $300K building blaze. Here's the full picture.

Updated Sep 27, 2026 Grade A Peak yr 2024 Contra Costa County 14,355 residents 0 reporting departments 236 5-yr
Total incidents
42
-38.2% vs 2024
Building fires
1
Residential 0% Other 100%
Property loss
$310K
$310K structure · $0 contents
Deaths & injuries
0 / 0
0 civilian deaths · 0 civ injuries · 0 firefighter injuries
01 The mix

What kinds of fires happen here?

Hazardous condition, other lead by count. Building fires lead by dollars. Together the top five categories make up about 83% of all calls.

42
Total Incidents
Hazardous condition, other 18 42.9%
Gas leak (natural gas or LPG) 8 19.0%
Carbon monoxide incident 5 11.9%
Mobile property (vehicle) fire, other 2 4.8%
Electrical wiring/equipment problem, other 2 4.8%
All other categories 7 16.7%
02 Seasonality

When do fires happen?

Jan peaks. Feb dips. Watch for the typical fall climb starting in October.

Jan 5
Feb 1
Mar 5
Apr 2
May 2
Jun 2
Jul 5
Aug 4
Sep 3
Oct 4
Nov 4
Dec 5
Fewer
More
2b Five-year trend

Year over year in Alamo

236 incidents 2021–2025. Peak year was 2024. $1.4M cumulative property loss.

YearIncidentsYoY 
2021* 7 —
2022 53 —
2023 66 +24.5%
2024 68 +3.0%
2025 42 -38.2%

* Well below Alamo's usual volume. That almost always means one or more departments didn't submit a full year to NFIRS, not that fires dropped, so no year-over-year change is shown for it.

03 Cause of ignition

What sparks building fires?

For the 1 building fires Alamo departments responded to in 2025, here's how they were classified once investigators were finished.

Unintentional
33%
2
Cause undetermined
33%
2
Intentional / arson
0%
0
Equipment / heat source failure
17%
1
Under investigation
17%
1
Act of nature (lightning)
0%
0
3b Where fires start

Where do fires start in Alamo?

NFIRS Area of Origin (AREA_ORIG) for the 38 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 8 21.1%
2 Outside area, other 8 21.1%
3 Undetermined 4 10.5%
4 Bedroom - < 5 persons; included are jail or prison 2 5.3%
5 Cooking area, kitchen 2 5.3%
6 Open area - outside; included are farmland, field 2 5.3%
7 Other 1 2.6%
8 Common room, den, family room, living room, lounge 1 2.6%
9 Duct: hvac, cable, exhaust, heating, or AC 1 2.6%
10 Equipment or service area, other 1 2.6%
11 All other areas 8 21.1%
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 Alamo mix.

#Heat sourceCountShare 
1 Undetermined 12 31.6%
2 Heat from powered equipment, other 7 18.4%
3 Heat source: other 4 10.5%
4 Arcing 4 10.5%
5 Spark, ember or flame from operating equipment 2 5.3%
6 Hot or smoldering object, other 2 5.3%
7 Candle 2 5.3%
8 Cigarette 1 2.6%
9 Flame/torch used for lighting 1 2.6%
10 Chemical reaction 1 2.6%
11 All other sources 2 5.3%
04 The biggest fires

3 fires · $310K in losses

Largest single-incident property losses reported by Alamo departments in 2025. These 3 fires alone account for 100% of the city's annual total.

# Property loss Type Severity Status
1 $300,000 Mobile property (vehicle) fire, other Major Investigated
2 $5,000 Mobile property (vehicle) fire, other Significant Investigated
3 $5,000 Outside rubbish fire, other Significant Investigated
05 How Alamo compares

Alamo vs California vs the nation

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

2.93
Incidents per 1,000 residents
Alamo
2.93
CA avg
5.32
US avg
7.48
0.07
Building fires per 1,000 residents
Alamo
0.07
CA avg
0.32
US avg
0.85
0
Civilian fire deaths per million
Alamo
0
CA avg
2.9
US avg
5.9
5c Wildfires nearby

Wildfires within 50 mi of Alamo

Top 25 wildfires (1992+) in the FPA-FOD ignitions database, scaled by acres. 1,003,528 acres burned in this 50-mile radius. Each dot is a fire — bigger dots burned more land.

50 mi radius
YearCauseAcresDistance 
2020 Missing data/not specified/undetermined 396,624 38.5 mi
2020 Natural 305,651 48.2 mi
2020 Missing data/not specified/undetermined 86,509 42.7 mi
2017 Missing data/not specified/undetermined 56,556 45.6 mi
2017 Missing data/not specified/undetermined 51,624 39.2 mi
1995 Recreation and ceremony 12,354 49.5 mi
2009 Missing data/not specified/undetermined 12,200 30.2 mi
2015 Equipment and vehicle use 8,051 45.3 mi
2009 Missing data/not specified/undetermined 7,817 49.8 mi
2003 Equipment and vehicle use 6,804 39.3 mi
2005 Arson/incendiarism 6,744 25.7 mi
2014 Fireworks 6,488 45.7 mi
5d Top ZIPs

Where in Alamo do fires concentrate?

Top 1 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 94507 216
5e Peer cities

Cities similar to Alamo

Six California cities with population within ±25% of Alamo. 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.