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2025 County Report

Fires in Mason County, WA

In 2025, fire departments serving Mason County responded to 467 fire and hazmat incidents — including a single $450K property loss. FEMA NRI rates wildfire risk here as Moderate.

19,248 residents FIPS 53045 36 cities · 0 fire depts
Total incidents
467
4,133 across 5 years
Building fires
31
67 wildland
Property loss
$2.4M
$2.1M structure · $272K contents
Casualties
0 / 3
0 civ deaths · 1 civ inj · 2 FF inj
01 The mix

What kinds of fires happen here?

Unauthorized burning lead by count. Top five categories make up about 57% of all calls.

467
Total Incidents
Unauthorized burning 153 32.8%
Brush, or brush and grass mixture fire 33 7.1%
Building fires 31 6.6%
Power line down 25 5.4%
Passenger vehicle fire 23 4.9%
All other categories 202 43.3%
02 Seasonality

When do fires happen in Mason County?

Jun peaks. Jan dips.

Jan 5
Feb 9
Mar 6
Apr 13
May 38
Jun 82
Jul 40
Aug 36
Sep 82
Oct 69
Nov 52
Dec 35
03 Five-year trend

Year over year in Mason County

4,133 incidents from 2021 through 2025.

YearIncidents 
2021 1,027
2022 1,076
2023 992
2024 571
2025 467
04 Cause of ignition

What sparks building fires?

For the 31 building fires departments responded to in 2025, here's how investigators classified them.

Unintentional
42%
29
Cause undetermined
20%
14
Intentional / arson
17%
12
Equipment / heat source failure
13%
9
Under investigation
7%
5
Act of nature (lightning)
1%
0
05 The biggest fires

10 fires · $1.8M in losses

Largest single-incident property losses in Mason County during 2025. These 10 fires alone account for 85% of the county's total.

#Property lossCityTypeSeverity
1 $450,000 Shelton Building fires Major
2 $300,000 Shelton Building fires Major
3 $250,000 Belfair Building fires Major
4 $194,000 Shelton Building fires Significant
5 $150,000 Shelton Building fires Significant
6 $135,000 Grapeview Building fires Significant
7 $100,000 Grapeview Building fires Significant
8 $90,000 Shelton Passenger vehicle fire Significant
9 $64,000 Shelton Building fires Significant
10 $62,000 Shelton Building fires Significant
06 How Mason County compares

Mason County vs WA vs the nation

Per-capita rates let us compare apples to apples.

24.26
Incidents per 1,000 residents
Mason County
24.26
WA avg
8.31
US avg
7.15
1.61
Building fires per 1,000 residents
Mason County
1.61
WA avg
0.69
US avg
0.82
0
Civilian fire deaths per million
Mason County
0
WA avg
4.4
US avg
5.8
07 Cities in this county

Largest cities in Mason County

12 cities mapped to FIPS 53045.

09 Historical wildfires

Largest fires recorded in WA

Top 10 fire perimeters by acres burned (state-scoped fallback while we build out per-county polygons).

#NameYearAgencyAcres
1 Carlton 2014 BLM 230,101
2 Cold Springs 2020 BIA 189,911
3 Range 12 2016 DOD 176,834
4 Range 12 2016 BLM 175,245
5 Tunk Block 2015 BLM 165,004
6 North Star 2015 USFS 165,003
7 Diamond Creek 2017 USFS 126,836
8 Lime Belt 2015 BLM 120,526
9 SCHNEIDER SPRINGS 2021 USFS 107,352
10 Colockum Tarps 2013 BLM 81,513

About this data

County-level NFIRS aggregates for 2025, plus 5-year totals across 2021–2025. NFIRS is voluntary — about 23,000 of roughly 30,000 US fire departments report — so totals are a strong indicator, not a complete census. Wildfire risk score (0–100) and Expected Annual Loss come from FEMA's National Risk Index. Drought class is the most recent USDM classification (D0 = abnormally dry through D4 = exceptional drought). Historical fire perimeters are sourced from the NIFC InterAgency Fire Perimeter History.