Home› Counties› ID› Fremont County
2025 County Report

Fires in Fremont County, ID

In 2025, fire departments serving Fremont County responded to 70 fire and hazmat incidents — including a single $900K property loss. FEMA NRI rates wildfire risk here as Very High.

7,307 residents FIPS 16043 27 cities · 3 fire depts
Total incidents
70
384 across 5 years
Building fires
6
19 wildland
Property loss
$1.5M
$1.3M structure · $238K contents
Casualties
0 / 1
0 civ deaths · 0 civ inj · 1 FF inj
01 The mix

What kinds of fires happen here?

Unauthorized burning lead by count. Top five categories make up about 66% of all calls.

70
Total Incidents
Unauthorized burning 21 30.0%
Brush, or brush and grass mixture fire 9 12.9%
Building fires 6 8.6%
Forest, woods or wildland fire 6 8.6%
Gas leak (natural gas or LPG) 4 5.7%
All other categories 24 34.3%
02 Seasonality

When do fires happen in Fremont County?

Apr peaks. Oct dips.

Jan 4
Feb 2
Mar 1
Apr 25
May 4
Jun 6
Jul 12
Aug 12
Sep 4
Oct 0
Nov 0
Dec 0
03 Five-year trend

Year over year in Fremont County

384 incidents from 2021 through 2025.

YearIncidents 
2021 125
2022 51
2023 57
2024 81
2025 70
04 Cause of ignition

What sparks building fires?

For the 6 building fires departments responded to in 2025, here's how investigators classified them.

Unintentional
50%
10
Cause undetermined
5%
1
Intentional / arson
10%
2
Equipment / heat source failure
25%
5
Under investigation
5%
1
Act of nature (lightning)
5%
1
05 The biggest fires

10 fires · $1.3M in losses

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

#Property lossCityTypeSeverity
1 $900,000 St Anthony Accident, potential accident, other Major
2 $150,000 St Anthony Building fires Significant
3 $75,000 Teton Building fires Significant
4 $30,000 St Anthony Passenger vehicle fire Significant
5 $30,000 St Anthony Off-road vehicle or heavy equipment fire Significant
6 $25,000 St Anthony Building fires Significant
7 $25,000 St Anthony Cultivated grain or crop fire Significant
8 $20,000 St Anthony Building fires Significant
9 $4,500 St Anthony Unauthorized burning Significant
10 $4,250 St Anthony Unauthorized burning Significant
06 How Fremont County compares

Fremont County vs ID vs the nation

Per-capita rates let us compare apples to apples.

9.58
Incidents per 1,000 residents
Fremont County
9.58
ID avg
8.41
US avg
7.15
0.82
Building fires per 1,000 residents
Fremont County
0.82
ID avg
0.8
US avg
0.82
0
Civilian fire deaths per million
Fremont County
0
ID avg
4.4
US avg
5.8
07 Cities in this county

Largest cities in Fremont County

12 cities mapped to FIPS 16043.

08 First responders

Busiest fire departments in Fremont County

3 departments report from this county.

South Fremont Fire District
St Anthony
FDID 43338 55 incidents 23 vol
North Fremont Fire District
Ashton
FDID 43336 11 incidents
Island Park Fire Protection Di
Macks Inn
FDID 43334 0 incidents
09 Historical wildfires

Largest fires recorded in ID

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

#NameYearAgencyAcres
1 Elk Mountain 2007 BLM 578,403
2 LONG BUTTE 2010 BLM 305,994
3 Mustang Complex 2012 USFS 287,852
4 SODA 2015 BLM 279,111
5 Diamond Pt Complex 2000 USFS 234,315
6 Pioneer 2016 USFS 188,404
7 PADDOCK 2024 BLM 187,184
8 Halstead 2012 USFS 179,308
9 Clear Creek 2000 USFS 164,755
10 Moose 2022 USFS 130,197

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.