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2025 Annual Fire Report

Fires in Cornelius, Oregon

In 2025, fire departments serving Cornelius responded to 95 fire and hazmat incidents — from cooking fires to gas leaks to a single $20K building blaze. Here's the full picture.

Updated Sep 27, 2026 Grade A- Peak yr 2021 Washington County 13,245 residents 0 reporting departments 442 5-yr
Total incidents
95
Not comparable with 2024 (incomplete reporting)
Building fires
10
Residential 60% Other 40%
Property loss
$104K
$83K structure · $21K contents
Deaths & injuries
0 / 0
0 civilian deaths · 0 civ injuries · 0 firefighter injuries
01 The mix

What kinds of fires happen here?

Brush, or brush and grass mixture fire lead by count. Building fires lead by dollars. Together the top five categories make up about 50% of all calls.

95
Total Incidents
Brush, or brush and grass mixture fire 18 18.9%
Building fires 10 10.5%
Gas leak (natural gas or LPG) 7 7.4%
Unauthorized burning 7 7.4%
Grass fire 6 6.3%
All other categories 47 49.5%
02 Seasonality

When do fires happen?

Aug peaks. Feb dips. Watch for the typical fall climb starting in October.

Jan 3
Feb 0
Mar 6
Apr 4
May 9
Jun 8
Jul 16
Aug 18
Sep 17
Oct 4
Nov 6
Dec 4
Fewer
More
2b Five-year trend

Year over year in Cornelius

442 incidents 2021–2025. Peak year was 2021. $423K cumulative property loss.

YearIncidentsYoY 
2021 119 —
2022 115 -3.4%
2023 68 -40.9%
2024* 45 —
2025 95 —

* Well below Cornelius's usual volume. That almost always means one or more departments didn't submit a full year to NFIRS, not that fires dropped, so no year-over-year change is shown for it.

03 Cause of ignition

What sparks building fires?

For the 10 building fires Cornelius departments responded to in 2025, here's how they were classified once investigators were finished.

Unintentional
50%
10
Cause undetermined
25%
5
Intentional / arson
10%
2
Equipment / heat source failure
5%
1
Under investigation
10%
2
Act of nature (lightning)
0%
0
3b Where fires start

Where do fires start in Cornelius?

NFIRS Area of Origin (AREA_ORIG) for the 124 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 Open area - outside; included are farmland, field 18 14.5%
2 Highway, parking lot, street: on or near 16 12.9%
3 Undetermined 15 12.1%
4 Cooking area, kitchen 12 9.7%
5 Outside area, other 9 7.3%
6 Other 5 4.0%
7 Vehicle storage area; garage, carport 5 4.0%
8 Engine area, running gear, wheel area 5 4.0%
9 Storage room, area, tank, or bin 4 3.2%
10 Chute/container - trash, rubbish, waste 3 2.4%
11 All other areas 32 25.8%
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 Cornelius mix.

#Heat sourceCountShare 
1 Undetermined 44 35.5%
2 Cigarette 14 11.3%
3 Hot ember or ash 10 8.1%
4 Cigarette lighter 10 8.1%
5 Radiated, conducted heat from operating equipment 8 6.5%
6 Heat source: other 6 4.8%
7 Heat from powered equipment, other 5 4.0%
8 Arcing 5 4.0%
9 Molten, hot material 4 3.2%
10 Hot or smoldering object, other 3 2.4%
11 All other sources 15 12.1%
04 The biggest fires

8 fires · $77K in losses

Largest single-incident property losses reported by Cornelius departments in 2025. These 8 fires alone account for 93% of the city's annual total.

# Property loss Type Severity Status
1 $20,000 Mobile property (vehicle) fire, other Significant Investigated
2 $16,000 Passenger vehicle fire Significant Investigated
3 $15,000 Building fires Significant Investigated
4 $10,000 Building fires Significant Investigated
5 $5,000 Passenger vehicle fire Significant Investigated
6 $5,000 Cultivated grain or crop fire Significant Investigated
7 $3,000 Brush, or brush and grass mixture fire Significant Investigated
8 $3,000 Passenger vehicle fire Significant Investigated
05 How Cornelius compares

Cornelius vs Oregon vs the nation

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

7.17
Incidents per 1,000 residents
Cornelius
7.17
OR avg
8.47
US avg
7.48
0.76
Building fires per 1,000 residents
Cornelius
0.76
OR avg
0.83
US avg
0.85
0
Civilian fire deaths per million
Cornelius
0
OR avg
3.8
US avg
5.9
5c Wildfires nearby

Wildfires within 50 mi of Cornelius

Top 25 wildfires (1992+) in the FPA-FOD ignitions database, scaled by acres. 21,281 acres burned in this 50-mile radius. Each dot is a fire — bigger dots burned more land.

50 mi radius
YearCauseAcresDistance 
2001 Natural 7,500 20.5 mi
2014 Missing data/not specified/undetermined 5,508 47.8 mi
2020 Missing data/not specified/undetermined 2,584 32.8 mi
2020 Missing data/not specified/undetermined 1,508 34.8 mi
2020 Power generation/transmission/distribution 532 38.5 mi
2020 Power generation/transmission/distribution 497 38.4 mi
2017 Debris and open burning 303 48.5 mi
2020 Missing data/not specified/undetermined 301 38.7 mi
2014 Debris and open burning 254 47.0 mi
2017 Debris and open burning 250 44.2 mi
2015 Recreation and ceremony 215 30.3 mi
2014 Missing data/not specified/undetermined 211 10.7 mi
5d Top ZIPs

Where in Cornelius do fires concentrate?

Top 6 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 97113 421
2 97124 9
3 97123 7
4 97116 3
5 97106 1
6 97119 1
5e Peer cities

Cities similar to Cornelius

Six Oregon cities with population within ±25% of Cornelius. 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.