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2025 Annual Fire Report

Fires in Lone Tree, Colorado

In 2025, fire departments serving Lone Tree responded to 57 fire and hazmat incidents — from cooking fires to gas leaks to a single $76K building blaze. Here's the full picture.

Updated Sep 27, 2026 Grade A- Peak yr 2022 Douglas County 13,993 residents 0 reporting departments 311 5-yr
Total incidents
57
+1.8% vs 2024
Building fires
2
Residential 50% Other 50%
Property loss
$98K
$97K structure · $1K contents
Deaths & injuries
0 / 1
0 civilian deaths · 1 civ injuries · 0 firefighter injuries
01 The mix

What kinds of fires happen here?

Gas leak (natural gas or LPG) lead by count. Building fires lead by dollars. Together the top five categories make up about 65% of all calls.

57
Total Incidents
Gas leak (natural gas or LPG) 14 24.6%
Passenger vehicle fire 8 14.0%
Special outside fire, other 6 10.5%
Carbon monoxide incident 5 8.8%
Brush, or brush and grass mixture fire 4 7.0%
All other categories 20 35.1%
02 Seasonality

When do fires happen?

Jul peaks. Nov dips. Watch for the typical fall climb starting in October.

Jan 5
Feb 7
Mar 6
Apr 5
May 4
Jun 7
Jul 8
Aug 7
Sep 7
Oct 1
Nov 0
Dec 0
Fewer
More
2b Five-year trend

Year over year in Lone Tree

311 incidents 2021–2025. Peak year was 2022. $634K cumulative property loss. 1 civilian deaths.

YearIncidentsYoY 
2021 74 —
2022 75 +1.4%
2023 49 -34.7%
2024 56 +14.3%
2025 57 +1.8%
03 Cause of ignition

What sparks building fires?

For the 2 building fires Lone Tree departments responded to in 2025, here's how they were classified once investigators were finished.

Unintentional
68%
13
Cause undetermined
5%
1
Intentional / arson
11%
2
Equipment / heat source failure
5%
1
Under investigation
11%
2
Act of nature (lightning)
0%
0
3b Where fires start

Where do fires start in Lone Tree?

NFIRS Area of Origin (AREA_ORIG) for the 113 building fires investigators classified across 2021–2025. The room or location where ignition occurred — kitchens, bedrooms, exterior, vehicle areas — tells you where to focus prevention.

#Area of originCountShare 
1 Engine area, running gear, wheel area 33 29.2%
2 Outside area, other 33 29.2%
3 Chute/container - trash, rubbish, waste 9 8.0%
4 Undetermined 6 5.3%
5 Open area - outside; included are farmland, field 5 4.4%
6 Highway, parking lot, street: on or near 4 3.5%
7 Courtyard, patio, porch, terrace 4 3.5%
8 Cooking area, kitchen 3 2.7%
9 Vehicle storage area; garage, carport 3 2.7%
10 Exterior balcony, unenclosed porch 2 1.8%
11 All other areas 11 9.7%
3c What ignited it

What actually ignited the fire?

NFIRS Heat Source (HEAT_SOURC) — the physical thing that started it. Spark or ember from operating equipment, an open flame, smoking materials, or hot embers from a fireplace are the leading culprits nationwide. Here's the Lone Tree mix.

#Heat sourceCountShare 
1 Undetermined 52 46.0%
2 Heat source: other 9 8.0%
3 Heat from powered equipment, other 9 8.0%
4 Hot or smoldering object, other 7 6.2%
5 Cigarette 7 6.2%
6 Heat, spark from friction 6 5.3%
7 Radiated, conducted heat from operating equipment 4 3.5%
8 Spark, ember or flame from operating equipment 3 2.7%
9 Arcing 3 2.7%
10 Hot ember or ash 2 1.8%
11 All other sources 11 9.7%
04 The biggest fires

8 fires · $97K in losses

Largest single-incident property losses reported by Lone Tree departments in 2025. These 8 fires alone account for 100% of the city's annual total.

# Property loss Type Severity Status
1 $76,370 Passenger vehicle fire Significant Investigated
2 $8,000 Passenger vehicle fire Significant Investigated
3 $6,113 Building fires Significant Investigated
4 $3,000 Passenger vehicle fire Significant Investigated
5 $2,000 Mobile property (vehicle) fire, other Significant Investigated
6 $1,000 Outside equipment fire Significant Investigated
7 $100 Building fires Significant Investigated
8 $1 Special outside fire, other Significant Investigated
05 How Lone Tree compares

Lone Tree vs Colorado vs the nation

Per-capita rates let us compare apples to apples. Lone Tree sits below the national average for incidents per resident.

4.07
Incidents per 1,000 residents
Lone Tree
4.07
CO avg
8
US avg
7.48
0.14
Building fires per 1,000 residents
Lone Tree
0.14
CO avg
0.53
US avg
0.85
0
Civilian fire deaths per million
Lone Tree
0
CO avg
4.8
US avg
5.9
5c Wildfires nearby

Wildfires within 50 mi of Lone Tree

Top 25 wildfires (1992+) in the FPA-FOD ignitions database, scaled by acres. 240,420 acres burned in this 50-mile radius. Each dot is a fire — bigger dots burned more land.

50 mi radius
YearCauseAcresDistance 
2002 Missing data/not specified/undetermined 137,760 43.5 mi
2012 Missing data/not specified/undetermined 18,947 44.9 mi
2013 Missing data/not specified/undetermined 16,580 38.0 mi
1996 Recreation and ceremony 11,875 28.3 mi
2000 Smoking 10,800 29.1 mi
2010 Debris and open burning 6,382 44.8 mi
2011 Missing data/not specified/undetermined 5,200 15.0 mi
2012 Debris and open burning 4,142 19.6 mi
2002 Natural 4,085 25.9 mi
2003 Power generation/transmission/distribution 3,869 49.8 mi
2009 Missing data/not specified/undetermined 3,008 41.0 mi
2002 Smoking 2,312 35.6 mi
5d Top ZIPs

Where in Lone Tree do fires concentrate?

Top 4 ZIP codes by NFIRS incident count across 2021–2025. Each ZIP has its own fire profile — dive in for neighborhood-level context.

#ZIP5-yr incidents 
1 80124 303
2 80112 6
3 80130 1
4 80134 1
5e Peer cities

Cities similar to Lone Tree

Six Colorado cities with population within ±25% of Lone Tree. Useful comparison targets — same state, similar size, different fire profile.

07 Stay prepared

Before the next Red Flag day.

A 30-minute weekend can cut your home's exposure substantially. These four checklists are a good starting point.

About this data

Numbers reflect incidents reported by participating fire departments to the National Fire Incident Reporting System (NFIRS) Public Data Release for calendar year 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. Per-capita comparisons use 2023 ACS population estimates. Wildland fire data complements NFIRS with NIFC and USFS perimeters. Active-fire counts come from a dated NIFC snapshot, not a live feed.