Home› Counties› MT› Lewis and Clark County
2025 County Report

Fires in Lewis and Clark County, MT

In 2025, fire departments serving Lewis and Clark County responded to 194 fire and hazmat incidents — including a single $100K property loss. FEMA NRI rates wildfire risk here as Very High.

65,004 residents FIPS 30049 37 cities · 25 fire depts
Total incidents
194
1,280 across 5 years
Building fires
34
41 wildland
Property loss
$933K
$452K structure · $481K contents
Casualties
0 / 0
0 civ deaths · 0 civ inj · 0 FF inj
01 The mix

What kinds of fires happen here?

Building fires lead by count. Top five categories make up about 58% of all calls.

194
Total Incidents
Building fires 34 17.5%
Gas leak (natural gas or LPG) 23 11.9%
Authorized controlled burning 22 11.3%
Forest, woods or wildland fire 20 10.3%
Power line down 13 6.7%
All other categories 82 42.3%
02 Seasonality

When do fires happen in Lewis and Clark County?

Jul peaks. Nov dips.

Jan 9
Feb 15
Mar 19
Apr 25
May 26
Jun 13
Jul 34
Aug 25
Sep 9
Oct 15
Nov 1
Dec 3
03 Five-year trend

Year over year in Lewis and Clark County

1,280 incidents from 2021 through 2025.

YearIncidents 
2021 463
2022 297
2023 148
2024 178
2025 194
04 Cause of ignition

What sparks building fires?

For the 34 building fires departments responded to in 2025, here's how investigators classified them.

Unintentional
44%
14
Cause undetermined
9%
3
Intentional / arson
0%
0
Equipment / heat source failure
41%
13
Under investigation
3%
1
Act of nature (lightning)
3%
1
05 The biggest fires

10 fires · $450K in losses

Largest single-incident property losses in Lewis and Clark County during 2025. These 10 fires alone account for 100% of the county's total.

#Property lossCityTypeSeverity
1 $100,000 EAST HELENA Building fires Significant
2 $100,000 Lincoln Building fires Significant
3 $100,000 Wolf Creek Building fires Significant
4 $50,000 HELENA Building fires Significant
5 $35,000 EAST HELENA Fire in mobile prop. used as a fixed struc., other Significant
6 $25,000 EAST HELENA Fire in mobile home used as fixed residence Significant
7 $20,000 City of Helena Building fires Significant
8 $10,000 EAST HELENA Building fires Significant
9 $5,000 City of Helena Mobile property (vehicle) fire, other Significant
10 $5,000 Lincoln Building fires Significant
06 How Lewis and Clark County compares

Lewis and Clark County vs MT vs the nation

Per-capita rates let us compare apples to apples.

2.98
Incidents per 1,000 residents
Lewis and Clark County
2.98
MT avg
7.52
US avg
7.15
0.52
Building fires per 1,000 residents
Lewis and Clark County
0.52
MT avg
0.62
US avg
0.82
0
Civilian fire deaths per million
Lewis and Clark County
0
MT avg
5.2
US avg
5.8
07 Cities in this county

Largest cities in Lewis and Clark County

12 cities mapped to FIPS 30049.

08 First responders

Busiest fire departments in Lewis and Clark County

25 departments report from this county.

West Helena Valley VFD
—
FDID 05011 84 incidents
TriLakes FSA
East Helena
FDID 05013 32 incidents 41 vol
East Valley VFD
Helena
FDID 05012 30 incidents
Lincoln RFD
—
FDID 05031 14 incidents
East Helena VFD
—
FDID 05002 0 incidents 2 vol
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.