Home› Counties› CO› Summit County
2025 County Report

Fires in Summit County, CO

In 2025, fire departments serving Summit County responded to 414 fire and hazmat incidents — including a single $78K property loss. FEMA NRI rates wildfire risk here as Moderate.

16,000 residents FIPS 08117 11 cities · 2 fire depts
Total incidents
414
1,732 across 5 years
Building fires
17
20 wildland
Property loss
$322K
$300K structure · $22K contents
Casualties
0 / 3
0 civ deaths · 1 civ inj · 2 FF inj
01 The mix

What kinds of fires happen here?

Flammable gas or liquid condition, other lead by count. Top five categories make up about 66% of all calls.

414
Total Incidents
Flammable gas or liquid condition, other 95 22.9%
Gas leak (natural gas or LPG) 73 17.6%
Carbon monoxide incident 57 13.8%
Gasoline or other flammable liquid spill 25 6.0%
Unauthorized burning 25 6.0%
All other categories 139 33.6%
02 Seasonality

When do fires happen in Summit County?

Dec peaks. Apr dips.

Jan 46
Feb 31
Mar 27
Apr 25
May 33
Jun 29
Jul 34
Aug 40
Sep 34
Oct 25
Nov 32
Dec 58
03 Five-year trend

Year over year in Summit County

1,732 incidents from 2021 through 2025.

YearIncidents 
2021 246
2022 284
2023 382
2024 406
2025 414
04 Cause of ignition

What sparks building fires?

For the 17 building fires departments responded to in 2025, here's how investigators classified them.

Unintentional
50%
22
Cause undetermined
7%
3
Intentional / arson
7%
3
Equipment / heat source failure
23%
10
Under investigation
14%
6
Act of nature (lightning)
-1%
0
05 The biggest fires

10 fires · $285K in losses

Largest single-incident property losses in Summit County during 2025. These 10 fires alone account for 95% of the county's total.

#Property lossCityTypeSeverity
1 $78,000 Summit County Passenger vehicle fire Significant
2 $76,000 Summit County Passenger vehicle fire Significant
3 $50,000 Keystone Building fires Significant
4 $18,000 Summit County Passenger vehicle fire Significant
5 $16,000 Copper Mountain Passenger vehicle fire Significant
6 $15,000 Summit County Passenger vehicle fire Significant
7 $10,000 Summit County Passenger vehicle fire Significant
8 $10,000 Silverthorne Passenger vehicle fire Significant
9 $7,000 Summit County Passenger vehicle fire Significant
10 $5,000 Silverthorne Building fires Significant
06 How Summit County compares

Summit County vs CO vs the nation

Per-capita rates let us compare apples to apples.

25.88
Incidents per 1,000 residents
Summit County
25.88
CO avg
8.02
US avg
7.15
1.06
Building fires per 1,000 residents
Summit County
1.06
CO avg
0.53
US avg
0.82
0
Civilian fire deaths per million
Summit County
0
CO avg
4.8
US avg
5.8
07 Cities in this county

Largest cities in Summit County

11 cities mapped to FIPS 08117.

08 First responders

Busiest fire departments in Summit County

2 departments report from this county.

SUMMIT FIRE EMS FPD
DILLON
FDID 11725 217 incidents 40 paid 10 vol
LOWER BLUE FPD
HEENEY
FDID 11735 0 incidents 10 vol
09 Historical wildfires

Largest fires recorded in CO

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

#NameYearAgencyAcres
1 Cameron Peak 2020 USFS 208,912
2 Pine Gulch 2020 BLM 138,802
3 Hayman 2002 USFS 137,760
4 Spring Creek 2018 BLM 108,045
5 High Park 2012 BLM 87,306
6 MISSIONARY RIDGE 2002 USFS 70,480
7 WEST FORK 2013 USFS 56,575
8 416 2018 USFS 54,130
9 Papoose 2013 USFS 49,282
10 Bridger 2008 BLM 46,588

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.