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2025 County Report

Fires in Arapahoe County, CO

In 2025, fire departments serving Arapahoe County responded to 3,318 fire and hazmat incidents — including a single $3.0M property loss. FEMA NRI rates wildfire risk here as Very High.

662,681 residents FIPS 08005 25 cities · 12 fire depts
Total incidents
3,318
17,487 across 5 years
Building fires
250
364 wildland
Property loss
$35.4M
$25.7M structure · $9.7M contents
Casualties
2 / 22
2 civ deaths · 15 civ inj · 7 FF inj
01 The mix

What kinds of fires happen here?

Outside rubbish, trash or waste fire lead by count. Top five categories make up about 48% of all calls.

3,318
Total Incidents
Outside rubbish, trash or waste fire 488 14.7%
Gas leak (natural gas or LPG) 412 12.4%
Building fires 250 7.5%
Grass fire 223 6.7%
Passenger vehicle fire 220 6.6%
All other categories 1,725 52.0%
02 Seasonality

When do fires happen in Arapahoe County?

Jul peaks. Nov dips.

Jan 256
Feb 212
Mar 313
Apr 295
May 251
Jun 278
Jul 379
Aug 341
Sep 258
Oct 279
Nov 208
Dec 248
03 Five-year trend

Year over year in Arapahoe County

17,487 incidents from 2021 through 2025.

YearIncidents 
2021 3,141
2022 3,662
2023 3,251
2024 4,115
2025 3,318
04 Cause of ignition

What sparks building fires?

For the 250 building fires departments responded to in 2025, here's how investigators classified them.

Unintentional
46%
377
Cause undetermined
22%
177
Intentional / arson
11%
87
Equipment / heat source failure
11%
94
Under investigation
9%
73
Act of nature (lightning)
1%
13
05 The biggest fires

10 fires · $9.8M in losses

Largest single-incident property losses in Arapahoe County during 2025. These 10 fires alone account for 38% of the county's total.

#Property lossCityTypeSeverity
1 $2,965,056 Centennial Building fires Major
2 $1,300,000 Aurora Building fires Major
3 $1,180,197 Centennial Building fires Major
4 $924,424 Arapahoe County Building fires Major
5 $766,000 Centennial Building fires Major
6 $612,000 Watkins Building fires Major
7 $600,000 Aurora Building fires Major
8 $546,106 Arapahoe County Building fires Major
9 $500,000 Adams County Flammable gas or liquid condition, other Major
10 $400,000 Aurora Construction or demolition landfill fire Major
06 How Arapahoe County compares

Arapahoe County vs CO vs the nation

Per-capita rates let us compare apples to apples.

5.01
Incidents per 1,000 residents
Arapahoe County
5.01
CO avg
8.02
US avg
7.15
0.38
Building fires per 1,000 residents
Arapahoe County
0.38
CO avg
0.53
US avg
0.82
3
Civilian fire deaths per million
Arapahoe County
3
CO avg
4.8
US avg
5.8
07 Cities in this county

Largest cities in Arapahoe County

12 cities mapped to FIPS 08005.

08 First responders

Busiest fire departments in Arapahoe County

12 departments report from this county.

AURORA FD
AURORA
FDID 00505 1,844 incidents 346 paid
BYERS VFD
BYERS
FDID 00515 86 incidents 40 vol
SABLEALTURA FD
AURORA
FDID 00155 51 incidents 3 paid 35 vol
DEER TRAIL FPD
DEER TRAIL
FDID 00540 27 incidents 18 vol
BUCKLEY FD
BUCKLEY AFB
FDID 00120 0 incidents 55 paid
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.