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2025 County Report

Fires in Sanders County, MT

In 2025, fire departments serving Sanders County responded to 26 fire and hazmat incidents — including a single $5K property loss. FEMA NRI rates wildfire risk here as Very High.

5,034 residents FIPS 30089 29 cities · 10 fire depts
Total incidents
26
242 across 5 years
Building fires
3
10 wildland
Property loss
$5K
$5K structure · $0 contents
Casualties
0 / 0
0 civ deaths · 0 civ inj · 0 FF inj
01 The mix

What kinds of fires happen here?

Vehicle accident, general cleanup lead by count. Top five categories make up about 69% of all calls.

26
Total Incidents
Vehicle accident, general cleanup 6 23.1%
Grass fire 4 15.4%
Building fires 3 11.5%
Forest, woods or wildland fire 3 11.5%
Natural vegetation fire, other 2 7.7%
All other categories 8 30.8%
02 Seasonality

When do fires happen in Sanders County?

Feb peaks. Mar dips.

Jan 2
Feb 5
Mar 0
Apr 5
May 4
Jun 2
Jul 3
Aug 1
Sep 3
Oct 0
Nov 0
Dec 1
03 Five-year trend

Year over year in Sanders County

242 incidents from 2021 through 2025.

YearIncidents 
2021 77
2022 47
2023 70
2024 22
2025 26
04 Cause of ignition

What sparks building fires?

For the 3 building fires departments responded to in 2025, here's how investigators classified them.

Unintentional
50%
1
Cause undetermined
0%
0
Intentional / arson
50%
1
Equipment / heat source failure
0%
0
Under investigation
0%
0
Act of nature (lightning)
0%
0
05 The biggest fires

1 fires · $5K in losses

Largest single-incident property losses in Sanders County during 2025. These 1 fires alone account for 100% of the county's total.

#Property lossCityTypeSeverity
1 $5,000 Thompson Falls Vehicle accident, general cleanup Significant
06 How Sanders County compares

Sanders County vs MT vs the nation

Per-capita rates let us compare apples to apples.

5.16
Incidents per 1,000 residents
Sanders County
5.16
MT avg
7.52
US avg
7.15
0.6
Building fires per 1,000 residents
Sanders County
0.6
MT avg
0.62
US avg
0.82
0
Civilian fire deaths per million
Sanders County
0
MT avg
5.2
US avg
5.8
07 Cities in this county

Largest cities in Sanders County

12 cities mapped to FIPS 30089.

08 First responders

Busiest fire departments in Sanders County

10 departments report from this county.

Thompson Falls Rural Fire Dist
—
FDID 35014 16 incidents
Trout Creek RFD
Trout Creek
FDID 35005 3 incidents 16 vol
Heron RFD
Heron
FDID 35033 3 incidents 23 vol
Thompson Falls VFD
Thompson Falls
FDID 35001 0 incidents 11 vol
Plains VFD
—
FDID 35002 0 incidents
09 Historical wildfires

Largest fires recorded in MT

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

#NameYearAgencyAcres
1 Lodgepole Complex 2017 BLM 271,420
2 Derby 2006 USFS 207,237
3 Rice Ridge 2017 USFS 160,001
4 Pine Ridge Complex 2006 BLM 114,655
5 Dunn Mountain 2008 BLM 102,324
6 SartinDraw 2017 USFS 99,713
7 TaylorCreek 2012 USFS 62,148
8 Trail Creek 2021 USFS 62,012
9 Stag 2000 USFS 61,727
10 StormCreek 1988 USFS 58,721

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.