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2025 Annual Fire Report

Fires in Gresham, Oregon

In 2025, fire departments serving Gresham responded to 556 fire and hazmat incidents — from cooking fires to gas leaks to a single $934K building blaze. Here's the full picture.

Updated Sep 27, 2026 Grade A Peak yr 2024 Multnomah County 113,525 residents 0 reporting departments 2,990 5-yr
Total incidents
556
-29.4% vs 2024
Building fires
78
Residential 67% Other 33%
Property loss
$3.7M
$2.8M structure · $933K contents
Deaths & injuries
0 / 1
0 civilian deaths · 1 civ injuries · 0 firefighter injuries
01 The mix

What kinds of fires happen here?

Unauthorized burning lead by count. Building fires lead by dollars. Together the top five categories make up about 57% of all calls.

556
Total Incidents
Unauthorized burning 112 20.1%
Building fires 78 14.0%
Carbon monoxide incident 51 9.2%
Brush, or brush and grass mixture fire 42 7.6%
Special outside fire, other 34 6.1%
All other categories 239 43.0%
02 Seasonality

When do fires happen?

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

Jan 59
Feb 43
Mar 54
Apr 57
May 69
Jun 6
Jul 120
Aug 5
Sep 67
Oct 5
Nov 2
Dec 69
Fewer
More
2b Five-year trend

Year over year in Gresham

2,990 incidents 2021–2025. Peak year was 2024. $11.2M cumulative property loss.

YearIncidentsYoY 
2021 497 —
2022 584 +17.5%
2023 565 -3.3%
2024 788 +39.5%
2025 556 -29.4%
03 Cause of ignition

What sparks building fires?

For the 78 building fires Gresham departments responded to in 2025, here's how they were classified once investigators were finished.

Unintentional
67%
96
Cause undetermined
17%
25
Intentional / arson
5%
7
Equipment / heat source failure
6%
8
Under investigation
1%
1
Act of nature (lightning)
4%
1
3b Where fires start

Where do fires start in Gresham?

NFIRS Area of Origin (AREA_ORIG) for the 939 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 Outside area, other 191 20.3%
2 Undetermined 121 12.9%
3 Highway, parking lot, street: on or near 79 8.4%
4 Cooking area, kitchen 69 7.3%
5 Open area - outside; included are farmland, field 67 7.1%
6 Engine area, running gear, wheel area 56 6.0%
7 Other 31 3.3%
8 Vehicle area, other 30 3.2%
9 Exterior balcony, unenclosed porch 24 2.6%
10 Operator/passenger area of transportation equip. 23 2.4%
11 All other areas 248 26.4%
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 Gresham mix.

#Heat sourceCountShare 
1 Undetermined 365 38.9%
2 Heat source: other 98 10.4%
3 Heat from powered equipment, other 90 9.6%
4 Hot or smoldering object, other 64 6.8%
5 Heat from other open flame or smoking materials 54 5.8%
6 Cigarette lighter 50 5.3%
7 Cigarette 44 4.7%
8 Radiated, conducted heat from operating equipment 31 3.3%
9 Hot ember or ash 24 2.6%
10 Arcing 22 2.3%
11 All other sources 97 10.3%
04 The biggest fires

8 fires · $2.1M in losses

Largest single-incident property losses reported by Gresham departments in 2025. These 8 fires alone account for 76% of the city's annual total.

# Property loss Type Severity Status
1 $933,790 Building fires Major Investigated
2 $253,880 Building fires Major Investigated
3 $235,778 Building fires Significant Investigated
4 $233,330 Building fires Significant Investigated
5 $171,071 Building fires Significant Investigated
6 $117,504 Building fires Significant Investigated
7 $100,000 Outside rubbish, trash or waste fire Significant Investigated
8 $75,000 Building fires Significant Investigated
05 How Gresham compares

Gresham vs Oregon vs the nation

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

4.9
Incidents per 1,000 residents
Gresham
4.9
OR avg
8.47
US avg
7.48
0.69
Building fires per 1,000 residents
Gresham
0.69
OR avg
0.83
US avg
0.85
0
Civilian fire deaths per million
Gresham
0
OR avg
3.8
US avg
5.9
5c Wildfires nearby

Wildfires within 50 mi of Gresham

Top 25 wildfires (1992+) in the FPA-FOD ignitions database, scaled by acres. 486,874 acres burned in this 50-mile radius. Each dot is a fire — bigger dots burned more land.

50 mi radius
YearCauseAcresDistance 
2020 Missing data/not specified/undetermined 193,573 48.6 mi
2020 Missing data/not specified/undetermined 138,054 36.3 mi
2017 Fireworks 48,488 27.5 mi
2020 Missing data/not specified/undetermined 24,995 36.8 mi
1992 Smoking 24,400 27.0 mi
2020 Natural 17,442 47.5 mi
2001 Natural 7,500 9.6 mi
2011 Natural 6,304 37.2 mi
2014 Missing data/not specified/undetermined 5,508 24.7 mi
2008 Natural 3,280 40.4 mi
2010 Natural 2,810 48.1 mi
2020 Missing data/not specified/undetermined 2,584 21.5 mi
5d Top ZIPs

Where in Gresham do fires concentrate?

Top 8 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 97030 1,472
2 97080 659
3 97230 504
4 97233 298
5 97236 27
6 97024 22
7 97060 7
8 97088 1
5e Peer cities

Cities similar to Gresham

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