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2025 Annual Fire Report

Fires in Black Diamond, Washington

In 2025, fire departments serving Black Diamond responded to 55 fire and hazmat incidents — from cooking fires to gas leaks to a single $200K building blaze. Here's the full picture.

Updated Sep 27, 2026 Grade B+ Peak yr 2024 King County 5,314 residents 0 reporting departments 282 5-yr
Total incidents
55
-20.3% vs 2024
Building fires
5
Residential 60% Other 40%
Property loss
$260K
$236K structure · $24K contents
Deaths & injuries
0 / 0
0 civilian deaths · 0 civ injuries · 0 firefighter injuries
01 The mix

What kinds of fires happen here?

Gas leak (natural gas or LPG) lead by count. Building fires lead by dollars. Together the top five categories make up about 55% of all calls.

55
Total Incidents
Gas leak (natural gas or LPG) 7 12.7%
Power line down 7 12.7%
Unauthorized burning 6 10.9%
Building fires 5 9.1%
Passenger vehicle fire 5 9.1%
All other categories 25 45.5%
02 Seasonality

When do fires happen?

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

Jan 5
Feb 6
Mar 2
Apr 4
May 1
Jun 8
Jul 5
Aug 4
Sep 6
Oct 7
Nov 5
Dec 2
Fewer
More
2b Five-year trend

Year over year in Black Diamond

282 incidents 2021–2025. Peak year was 2024. $395K cumulative property loss.

YearIncidentsYoY 
2021 62 —
2022 35 -43.5%
2023 61 +74.3%
2024 69 +13.1%
2025 55 -20.3%
03 Cause of ignition

What sparks building fires?

For the 5 building fires Black Diamond departments responded to in 2025, here's how they were classified once investigators were finished.

Unintentional
27%
3
Cause undetermined
36%
4
Intentional / arson
9%
1
Equipment / heat source failure
18%
2
Under investigation
9%
1
Act of nature (lightning)
1%
0
3b Where fires start

Where do fires start in Black Diamond?

NFIRS Area of Origin (AREA_ORIG) for the 44 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 Undetermined 11 25.0%
2 Outside area, other 7 15.9%
3 Other 5 11.4%
4 Engine area, running gear, wheel area 4 9.1%
5 Cooking area, kitchen 2 4.5%
6 Vehicle storage area; garage, carport 2 4.5%
7 Exterior balcony, unenclosed porch 2 4.5%
8 Courtyard, patio, porch, terrace 2 4.5%
9 Open area - outside; included are farmland, field 2 4.5%
10 Bedroom - < 5 persons; included are jail or prison 1 2.3%
11 All other areas 6 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 Black Diamond mix.

#Heat sourceCountShare 
1 Undetermined 19 43.2%
2 Arcing 5 11.4%
3 Hot ember or ash 4 9.1%
4 Hot or smoldering object, other 3 6.8%
5 Radiated, conducted heat from operating equipment 2 4.5%
6 Heat from other open flame or smoking materials 2 4.5%
7 Lightning 2 4.5%
8 Heat source: other 1 2.3%
9 Heat from powered equipment, other 1 2.3%
10 Spark, ember or flame from operating equipment 1 2.3%
11 All other sources 4 9.1%
04 The biggest fires

8 fires · $236K in losses

Largest single-incident property losses reported by Black Diamond departments in 2025. These 8 fires alone account for 100% of the city's annual total.

# Property loss Type Severity Status
1 $200,000 Building fires Significant Investigated
2 $20,000 Passenger vehicle fire Significant Investigated
3 $5,000 Chimney or flue fire, confined to chimney or flue Significant Investigated
4 $5,000 Passenger vehicle fire Significant Investigated
5 $3,000 Road freight or transport vehicle fire Significant Investigated
6 $1,000 Fire in motor home, camper, recreational vehicle Significant Investigated
7 $1,000 Passenger vehicle fire Significant Investigated
8 $1,000 Fire, other Significant Investigated
05 How Black Diamond compares

Black Diamond vs Washington vs the nation

Per-capita rates let us compare apples to apples. Black Diamond sits above the national average for incidents per resident.

10.35
Incidents per 1,000 residents
Black Diamond
10.35
WA avg
8.31
US avg
7.48
0.94
Building fires per 1,000 residents
Black Diamond
0.94
WA avg
0.69
US avg
0.85
0
Civilian fire deaths per million
Black Diamond
0
WA avg
4.4
US avg
5.9
5c Wildfires nearby

Wildfires within 50 mi of Black Diamond

Top 25 wildfires (1992+) in the FPA-FOD ignitions database, scaled by acres. 65,733 acres burned in this 50-mile radius. Each dot is a fire — bigger dots burned more land.

50 mi radius
YearCauseAcresDistance 
2017 Missing data/not specified/undetermined 52,056 39.3 mi
2017 Natural 3,853 43.4 mi
2003 Natural 1,097 48.9 mi
2017 Missing data/not specified/undetermined 1,061 29.2 mi
2006 Natural 969 42.6 mi
2009 Natural 750 37.2 mi
2020 Natural 588 45.0 mi
2020 Missing data/not specified/undetermined 494 17.1 mi
2018 Natural 420 24.3 mi
2017 Missing data/not specified/undetermined 360 31.3 mi
2015 Natural 359 40.0 mi
2007 Equipment and vehicle use 350 37.5 mi
5d Top ZIPs

Where in Black Diamond do fires concentrate?

Top 6 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 98010 266
2 98042 8
3 98092 4
4 98051 2
5 98022 1
6 98038 1
5e Peer cities

Cities similar to Black Diamond

Six Washington cities with population within ±25% of Black Diamond. 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.