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2025 County Report

Fires in Johnson County, WY

In 2025, fire departments serving Johnson County responded to 71 fire and hazmat incidents — including a single $250K property loss. FEMA NRI rates wildfire risk here as Very High.

4,743 residents FIPS 56019 8 cities · 3 fire depts
Total incidents
71
376 across 5 years
Building fires
11
38 wildland
Property loss
$280K
$250K structure · $30K contents
Casualties
0 / 0
0 civ deaths · 0 civ inj · 0 FF inj
01 The mix

What kinds of fires happen here?

Grass fire lead by count. Top five categories make up about 78% of all calls.

71
Total Incidents
Grass fire 24 33.8%
Building fires 11 15.5%
Brush, or brush and grass mixture fire 8 11.3%
Passenger vehicle fire 6 8.5%
Forest, woods or wildland fire 6 8.5%
All other categories 16 22.5%
02 Seasonality

When do fires happen in Johnson County?

Jul peaks. Oct dips.

Jan 5
Feb 1
Mar 6
Apr 5
May 3
Jun 11
Jul 26
Aug 12
Sep 2
Oct 0
Nov 0
Dec 0
03 Five-year trend

Year over year in Johnson County

376 incidents from 2021 through 2025.

YearIncidents 
2021 99
2022 77
2023 47
2024 82
2025 71
04 Cause of ignition

What sparks building fires?

For the 11 building fires departments responded to in 2025, here's how investigators classified them.

Unintentional
38%
6
Cause undetermined
0%
0
Intentional / arson
0%
0
Equipment / heat source failure
56%
9
Under investigation
6%
1
Act of nature (lightning)
0%
0
05 The biggest fires

1 fires · $250K in losses

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

#Property lossCityTypeSeverity
1 $250,000 Kaycee Building fires Major
06 How Johnson County compares

Johnson County vs WY vs the nation

Per-capita rates let us compare apples to apples.

14.97
Incidents per 1,000 residents
Johnson County
14.97
WY avg
5.99
US avg
7.15
2.32
Building fires per 1,000 residents
Johnson County
2.32
WY avg
0.59
US avg
0.82
0
Civilian fire deaths per million
Johnson County
0
WY avg
4.4
US avg
5.8
07 Cities in this county

Largest cities in Johnson County

8 cities mapped to FIPS 56019.

08 First responders

Busiest fire departments in Johnson County

3 departments report from this county.

JOHNSON COUNTY FIRE CONTROL DI
BUFFALO
FDID 19502 47 incidents 1 paid 1 vol
POWDER RIVER FIRE DISTRICT K
KAYCEE
FDID 19503 23 incidents 1 paid 1 vol
BUFFALO VOL FIRE DEPARTMENT
BUFFALO
FDID 19501 5 incidents 1 paid 1 vol
09 Historical wildfires

Largest fires recorded in WY

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

#NameYearAgencyAcres
1 Clover Mist 1988 USFS 341,291
2 CLOVERMIST 1988 NPS 232,190
3 Hellroaring 1988 USFS 206,358
4 Storm Creek 1988 USFS 206,056
5 East Troublesome 2020 USFS 193,693
6 Mullen 2020 USFS 176,787
7 HUCK 1988 NPS 120,297
8 Elk 2024 USFS 98,351
9 Pack Trail 2024 USFS 89,929
10 MINK 1988 NPS 88,369

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.